What follows is with most recent stuff first and oldest stuff at the bottom of the page.   Classes are separated by large font and ###.  

Spring 2015 General Chemistry I Lecture

I posted every grade for every quiz, exam, final exam, lab grade, homework grade, and attendance grade outside of LSF 301 inside the glass case.  Dropped quiz grades (2 dropped of 7 quizzes) are shown as an "x" before your grade.    I also replaced your lowest exam grade by the Final Exam grade if it was higher for one Exam.   If you missed one exam because of an unexcused absence (such as an absence due to you being sick without a doctor's excuse because you don't have insurance and couldn't visit the FMU nurse to get a note confirming that you are sick), I replaced the zero for the missed exam by your final exam grade.   I also submitted your final grades a few hours before the university grade submission deadline of 5/6/15 noon because that is when I finished grading.   I emailed to everyone in my class more information by Blackboard so you may want to check your Blackboard email.      Please note that the Final Average for all my 3 Lab Sections (100 students) was 86.4 % and the Final Average for both my 2 Lecture Sections (130 students) was 84%.   Also the bottom of the C assigned letter grade for my lecture went down pretty low.   So if all your friends earned 60% in the lecture, that does not mean that I gave everyone in the class a failing grade.    I have also been posting your grades all semester long so you would already have known that the average at the end of the semester would be pretty close to the actual Final posted grade.  I suggest that you take a look at everyone's grades posted outside of LSF 301 for perspective.   Best wishes.     Dr. Juliet Hahn 5/8/15 at  9:40 am from her parent's Columbia, SC home

*****************************************

Those of you who are in my General Chemistry 101 Lecture section:    I have only posted all of the quiz grades and all of the exam grades because I finished grading those.    The posting has quiz average and exam average. [NOTE from the posted exam and quiz statitics:  Quiz stastics for all quizzes is currently maximum =  109.8, minimum  = 46, average = 83.3 or 77.8 (with zeros input for all quizzes not taken)  This is not the final quiz average because I will go in and drop 2 lowest grade quizzes and plug in excused grades.   Exam stastics is currently maximum = 100, minimum = 47.5, average = 81.8 and Exam average with zeros input for all missing exams is 79.1.   This is not the final Exam statistics because your lowest Exam grade will be replaced by the Final Exam - replacing zeros for Exams not taken and Excuses which are due at the Final Exam. ]  I did not post (but I will post later in great detail):   your final exam grade (because you have not taken the final exam yet),   your homework "mastering" grades still grading (& I am now working on making up your final exam ), your lab grades (I may adjust the lab average to keep those consistent between sections ), your attendance extra credit points.    The final deadline for you to turn in excuses (documentation for missing exams, quizzes) is at the final exam.   I will post "ex" for all excused absences later just like I posted for the lab.   I have not yet posted but will soon post the final lab calculations and actual final lab points which I submitted to myself and Dr. Varazo to be included in the lecture final grade.    I am at home making up your final exam.   I am working on a deadline for making up your final exam because it takes quite a bit of time to make it up.   

Note also as stated on my syllabus a missed exam or quiz with documentation will be calculated:   For example if you miss Exam I with a documented excuse acceptable to me, your missing Exam I will be calculated as:  

 (Exam I missed) / (your average other exam)  = (class average Exam I) / (class average all exams) 

Your final exam will be:   approximately 1/3 multiple choice, 1/3 short answer, 1/3 long answer and will be cumulative (meaning from chapter 1 to chapter 10 - we left off chapter 6 because all sections leave off chapter 6)  and 2 times as long as a regular exam.    (normal exam is 7 to 10 pages) (final exam will be 14 to 20 pages long)   Study hard and I hope that you all do well on the Final Exam.   

The syllabus stated that you do get to drop (with no excuse and no documentation) 2 of the 7 quizzes and one lowest grade exam will be replaced by the final exam if you do better on the final exam.   So if you missed one exam for no documented reason (you were sick but could not visit a doctor, you overslept, etc), your zero for the missed exam will be replaced by the final exam grade.    If you missed 3 quizzes, one of the quizzes will be counted as a zero unless you have some sort of documented excuse.   If you missed 2 of the 3 exams, your second missed exam will be counted as a zero unless you have a documented excuse.    Documented excuse:   doctor's note, letter from another professor or coach excusing you from the exam or quiz because you were representing the univeristy in an official capacity.  

If you miss the final exam without a documented excuse, you will earn a zero on the final exam.   A zero on the final exam will drop your final grade down by about 2 letter grades (an A will drop to a C, a C will drop to an F).    If you miss the final exam with an airtight documented excuse, I will assign an "Incomplete" for the grading deadline.   Then I will give you a final exam which is not the same as the final exam that everyone else in the class took.   Please note that when all ~130 of you take a Final Exam, I sometimes curve the exam.   If you are the only person taking the make up final exam, there will be NO CURVE.   My suggestion:   I would avoid missing the final exam if at all possible.   I WILL NOT GIVE YOU THE SAME FINAL EXAM which I gave everyone else (and posted the answer key by around 5:30  pm 4/30 in the glass case outside LSF 301) after I give the exam to the other 130 people in class.    I will make an effort to NOT have the same question for the 8:30 (Final Exam at 8:30 am to 10:30 am on 4/30 Thursday in LSF 301) and 9:55 class (Final Exam at 3 to 5 pm Thursday in LSF 301) because there are a few hours between the two final exams.  

The final deadline for submitting grades is 5/6/15 at noon (and 5/4/15 at noon).   I will barely be able to finish grading (~130 x 20 page x 2/3 not multipe choice Final Exam) by the deadline.  I will go sleepless for a few nights grading this.   You know it usually takes me about a week to grade an exam half this size.   The only reason that I will be able to finish grading the Final in less than a week is because I am not teaching classes at the same time that I am grading the Final Exam.   This is why if you miss the final exam, I am unable to make up a make up Final Exam for you in time to submit a final grade.

Happy Final Exam Studying and good luck.     posted by Dr. Hahn at 11:50 am 4/28/15  from her Florence apartment while intensly making up your final exam

*****************************

Here is the answer key to the Final Exam.   I have also posted all of the excuses which I received by the final exam (4/30 by 5 pm).   If you have not submitted documentation for anything which you missed, it is now too late to submit documentation (i.e. doctor's note, etc) for anything you missed from the beginning of the semester.   I will probably be finished grading by the grading deadline of 5/6/15 at noon.   I will post after that deadline:  Final Exam grade, points for "Mastering HW", points for extra credit for attendance (you either earn or do not earn those points by 90% attendance by signatures on sign in sheet), your lab grades (if there is an adjustment in lab grades, you will be able to see both the raw and adjusted grade), your dropped quizzes (I drop 2 lowest grade quizzes of 7 total, would drop 2 of your missed without a documented excuse), I will also replace your lowest exam grade (or a zero earned because of a missed exam without documentation) by the percentage Final Exam grade.  

So far I have finished grading the multiple choice part and one page of the 10 non multiple choice parts of the Final Exam.   I am grading by myself so you know that I will barely finish grading by the Grading Deadline.  

If you want me to email you your grades, email me and I will email at the same time that I post the grades.   Keep in mind that someone may view your grades while in transit by email.   The grades will be posted in the glass case outside of LSF 301 as normally.

posted by Dr. Hahn on 5/2/15 at 9:45 am from her parent's Columbia, SC home

Here is the answer key to Quiz VII.   I have posted the final quiz average including all quizzes and the final exam grade average including all exams.   It does not show the effect of the excused absence quizzes or excused absence exams because I need the final averages in order to calculate those and I only that sometime last night.   I have not been inputting "EX" for excused absences so far because if I input those as soon as I get excuses from you as the semester progresses, it is kind of easy to figure out who brought me an excuse on a particular date so that your identity could have been compromised.  

posted by Dr. Hahn on 4/23/15 at 12:13 noon from her FMU office   (PS:   If some other professor made some sort of deal and neglected to tell me about it, you cannot hold me responsible for some other professor's deal.    If something was in my syllabus which you signed, just because some other professor says that the new deal is something else, I would not believe that my syllabus rules have suddently changed.    No other professor told me that my syllabus rules were to be changed.   So your grades are exactly as stated on my syllabus:   I do not negotiate with my students for a grade.   You earn exactly what you earned nothing more and nothing less.  I would spend my time actually trying to learn the material rather than trying to negotiate for a better grade because you will not get a better grade by negotiating.)

Here are the DocCameraNotes4-21-15 (will be removed after 5/1/15).   Next class I will return  graded Exam III, and Quiz VII.  posted by Dr. Hahn at 7 pm 4/22/15 from her Florence apartment

Here is the ExamIII key.   The Final exam will be approximately 1/3 multiple choice, 1/3 short answer and 1/3 long answers and cumulative.   It will be between 14 and 20 pages long or about two times as long as a regular exam.   The multiple choice part will be identical to the multiple choice from Exam I, II and III.   But it will do you no good to memorize that the answer to question # 4 is b.   I will combine the multiple choice from Exam I, II, III and then get rid of between 1/2 to 2/3 or the questions.   I will have new multiple choice questions from chapters 9 and 10.   Then I will scramble questions numbers and question choices so that question #4 from exam I may or maynot show up on the Final exam and if it does it could be question # 20 in between questions from Exam II and new questions (from chapter 9 and 10).   You should study the multiple choice questions from your own section but do note that the two forms  of each classes' exams already had the multiple choice questions scrambled by question and choice numbers.

I got a question from one of students if the short answer and long answers on the Final Exam will be the same as those from Exam I,II, III with just different numbers.   The answer is no.   The short answer and long answers will be totally differnt questions.   They will be similar to the short answer and long answers from old exams because I can't really think that much differently because I am the same person making up exam questions about the same material  but the questions will not be the same.

The final deadline for the "Mastering"   will be 4/23/15 at 8 pm.   After the deadline you will still be able to go in and look at the homework and continue to answer questions but ;you will no longer be able to answer any questions.    Do not spend all your time trying to do the HW because if you mess up one long answer question on the final exam, it would be the same as  if you get no points on the "Mastering" or if you get a zero on a quiz because you don't take it, it would be the same number of poitns lost.   Each quiz counts 20/820 points.   You do get to drop 2 (of the 7 quizzes) but if you miss taking 3 quizzes with no documented excuse, you will earn a zero on the missed quiz.  

The final deadline for turning in excuses is the Final Exam.   Even if you have airtight documented excuse, if I do not get it from you by the final exam, I will not consider your excuse.   The documentation acceptance is for any excuse from the beginning of the semester.

posted by Dr. Hahn on 4/18/15 at 8:10 am from her parent's Columbia, SC home

***********************************

Here is DocCameraNotes4-16-15Thursday (will be removed after 4/30/15)  posted by Dr. Hahn from her FMU office 4/17/15 at 9:40 am

Here is DocCameraNotes4-9-15Thursday (will be removed after 4/23/15) posted by Dr. Hahn from her parent's house in Columbia, SC 4/10/15 at 9:40 pm

Here is DocCameraNotes4-7-15Tuesday (will be removed after 4/23/15).   posted by Dr. Hahn from her FMU office on 4/10/15 at 11:45 am

Here is DocCameraNotes3-26-15Thursday (will be removed after 4/12/15).   I did not actually have document camera notes for this because the projector was not working so that I had to chalkboard.   I wrote up these notes this afternoon so it is possible that I left off some of what I actually discussed on 3/26.   On 3/26, I actually went over an example of using the combined gas law because I just wanted to make sure that you had that information for those of you who did not view the youtube videos.

Here is the answer key for Exam II.   Here is the answer key for QuizV.   Here is the answer key for QuizVI.   Sorry for positing it so late but I am now almost all caught up on the grading.  

Exam III is on 4/9/15 Thursday.   Please study Quiz V and Quiz VI.   Tomorrow on 4/7/15 I will answer questions about anything on Exam III.   Exam III will cover the last part of Chapter 4 (strong weak acid/bases, acid base reaction, acid base titration, gas evolution reaction, assigning oxidation states), Chapter 5 (using Ideal Gas Law & combined gas law, using 22.4 L/mol at STP, stoichiometry of gases, Dalton's law of partial pressure, mole fraction) Chapter 7 (principal quantum number, angular momentum quantum number, magnetic quantum number), Chatper 8 (electron configuration, electron orbital diagram,  valence electrons). UPDATE of 4/10/15:  chapter 8 also including ionization energy, periodic trends in atomic size and periodic trends in ionization energy

I think it should be OK because I will provide the equations for ideal gas law, combined gas law, dalton's law partial pressure, mole fraction.   If you feel unprepared, we will take a vote of the class and we may (with majority vote) move Exam III to 4/14 Tuesday.   However keep in mind that those of you in my lab class will have to take the MiniFinal (for the Tuesday class on 4/14 as well).   

 posted by Dr. Hahn 4/6/15 Monday at 6:00 pm from her Florence apartment.

Here is DocCameraNotes4-2-15Thursday (will be removed after4/12/15).   I will post Doc Notes of 3/26/15 Thursday, Exam II, Quiz V, and Quiz VI soon.   posted by Dr. Hahn on 4/5/15 at 3 pm from her parent's Columbia, SC home

Here is the DocCameraNotes3-31-15 Tuesday (will be removed on 4/10/15F) Because of various extra time consuming stuff, I have not posted my document camera notes in a timely manner:   My excuses:   (1)  my trip to the National American Chemical Society Meeting (in Denver, Colorado this year) to present  research:  Got up at 4:30 am on 3/23 Monday from my parent's house (in Columbia, SC) drove myself to the Columbia, SC airport.   Got to Denver on 3/23 afternoon.  Presented my research on 3/24 in the afternoon.   The only flight I could get out after my presentation in time to make it back on 3/25 Wednesday was at 12:20 midnight Denver time.   I got back to Atlanta at 5 am Atlanta time which was 3 am Denver time.   I flew back to Columbia at 9:30 am and then drove myself (without dropping by my parents) by 11:30 am in time to teach my 1:30 pm lab class.   So this was stricly a business trip.   I was not partying with the nerdy chemists in Denver.   (2) Because of snow delays I scheduled a lecture exam (for my 130 lecture students) the same week as my Mini Final for my 100 lab students.   The lecture exam was 7 pages with 5 pages not multiple choice.   My lab exam was 4 pages but all not multiple choice.  Because of snow delays I also had 2 lab reports turned in before Spring Break.   So I had around 130 5 to 7 page bad handwriting lab reports to grade as well.   I had a stack of about 4 foot tall x 8.5 x 12 papers to grade.  (3) I had to record myself doing both the lecture and the lab for 3/24 Tuesday class.   I had to make up a quiz for 3/26 Thursday lecture and the lab report form for the lab students and had to email everything to my students.   (4)  Because of the condensed schedule after the snow delay, I also had to make up a quiz for my lecture students for 4/2 Thursday.

Then on 3/26 the document camera projector would not work so I had to do my lecture on the chalkboard.   So I also now have to re-write the entire lecture for the 3/26 Thursday class. Normally I just scan in the lecture notes which I actually wrote for the class.   This week I returned   my 130 lecture Exam II, 100 lab reports, and 100 MiniFinals.   I barely had time to eat and sleep to do this.   If I don't get my grading done in time to return graded things, it is pointless so I was grading on a very tight deadline.  

So that is why my Document Camera Notes have not been posted for so long.   I am now working on the notes of 4/2 and the notes of 3/26.  I also need to post a couple of quizzes and exam answer keys before Exam III.

posted by Dr. Hahn on 4/3/15 at 11:20 am from her FMU office 

Here is the DocCameraNotes3-24-15 (will be removed after 4/7/15).   I am still grading Exam II.   Your Quiz V will cover material after the "precipitation reaction".   and all of the material in the 5 Youtube lecture videos at https://www.youtube.com/JulietHahnPhD     I am also going to post the lab videos as well so don't accidentally view all of my lab videos instead of the lecture videos.    I will ask an "attendance of the video" question on Quiz V.  posted at 11:45 pm on 3/19/15 from my parent's Columbia, SC home

Here is the DocCameraNotes3-12-15 (will be removed after 3/26/15).   I am still grading Exam II.   I am at my parent's home in Columbia, SC.   I drove to my parent's  house yesterday and had a hair cut Friday afternoon  in Columbia. 

Please note that I will be presenting on the results of my last summer research (not conducted under any other chemistry professor at FMU) at the National American Chemical Society on 3/24/15 Tuesday.   This is the Tuesday after Spring Break.  I  will present the 3/24 lecture in an online format.   There is a quiz (Quiz V) on 3/26.  I will post later (here, to your  fmarion.edu email address, and on Blackboard) a link to a Youtube video for a 1 hour 15 minute presentation of the Tuesday 3/24 lecture (& prelab for the lab).   You will be responsible for this 3/24 lecture on the quiz on 3/26.   As always there will be an extra credit question on material covered on 3/26.   There will also be attendance to the 3/24 (online presentation) by question during the quiz on 3/26.   If you miss Quiz V but virtually attended the online presentation, you will also be able to answer a blackboard question for attendance (instead of answering the question on Quiz V).   Have a good Spring Break.   Dr. Hahn 3/14/15 Saturday from her parent's Columbia, SC home

Here are stuff you need before Exam II.

Here are the answer keys and blank form for Quiz IV.  

Here are the revison to Exam and Quiz dates after SNOW II.   Note other than for the exam dates, there are no other revisions to the syllabus.   I just pulled out all the important stuff from the syllabus and put it on a single page.

Here are the DocCameraNotes3-3-S15 (will be removed 3/17/15)   Here are the DocCameraNotes3-5-S15 (will be removed 3/19/15).  Note that on 3/5/15, I just went over the answer the your questions on things that you think will be on Exam II.   (I am not trying to get a job as a tutor - I just wanted to go over the material so that you will do better on Exam II.   I just did not want you to go into Exam II without having all the needed information.   Here is the printable SolubilibityRulesChart.

Exam II will be similar in format to Exam I.   It will be approximately 1/3 multiple choice, ~ 1/3 short answer and ~1/3 long answers.   You should study Quiz III and Quiz IV from this semester (understand no memorize QIII and Q IV).    Good luck studying for Exam II.   posted by  Dr. Hahn on 3/6/15 Friday at 11:30 am from her FMU office

****SNOW UPDATE 2/24/15 New official email states that all classes including evening classes are canceled all day.So here is the final update on how the SNOW DAY will be made up.   This coming week the labs are going to be the Carbonate to Chloride lab as previously scheduled.   I wanted to just have you guys drop the lab for the Tuesday SNOW day missed lab class but Dr. Williams and Mr. Ragsdale decided (independently of me) that instead we are supposed to give you all a bunch of numbers and have you do the lab as a handout.   I'll tell you that lab is not that straightforward as far as the calculations go and chances are your other lab professors will just give you the handout because of the tight schedule of doing the lab scheduled for this Tuesday together with the next week's lab.   

So all lab sections of General Chemistry I, the rest of this week will go normally.  Next Tuesday your lab professors have a bunch of number to give you to do the lab report for the Carbonate to Chloride lab as a handout.   Your lab professors have the option of when to collect it, how much to count for that lab, etc.   So there it is Tuesday if you are in Mrs. Herbert or Dr. Ribar's class, I am not sure how they will handle it.   If you are in my section of the lab, I will just give you a handout (for Carbonate to Chloride) and will have to spend a little more time than normal to go over that lab as a handout.  Then we will do the normal lab scheduled (the Conductance lab).

I actually went in this morning and posted a note on LSF 301 saying that classes are delayed and was working on the spreadsheet for posting your QIII and Mini Final grades when I saw the later email.   I posted on Blackboard and then drove home and now I am posting this on my website.   Quiz IV will cover the same material already discussed for today's quiz.   I will then have to move Exam II to 3/5 Thursday.  We will do the normal regrouping / asking questions about QIII and QIV before Exam II on 3/3 Tuesday (the day I originally had scheduled for Exam II.)   Then the rest of the semester quizzes and exams will be the same as pre - SNOW day.   posted by Dr. Hahn at 11:30 am from her Florence apartment  University classes are delayed until the first class starting at 11:20 am. I received an official email to that effect.

The following is the official statement which I received by email from the University earlier today.    ".....The University will resume operations at 10:30 am this morning. Classes will meet as scheduled at 11:20 am. (Classes scheduled for 8:30 am and 9:55 am this morning will not meet.) ...."

This means that our classes scheduled for today to start from Tuesday 8:30 to 9:45 am and Tuesday from 9:55 am to 11:10 am are entirely canceled.    The quiz scheduled for today will be given on 2/26 Thursday instead. (it will cover the same material)   Exam II scheduled for 3/3 Tuesday will then have to be moved to 3/5 Thursday.    The rest of the exam schedule will remain where the exams and quizzes are currently scheduled. I will email everyone (probably tomorrow) the revised exam schedule - a revised schedule page from the original syllabus page 6.   Those of you in my section of Tuesday lab (which starts at 12:45 noon), will meet normally (unless there is a further official university closing).     Dr. Hahn posted from her Florence Apartment at 7:10 am 2/24/15   **snow update ends

Here is the DocCameraNotes2-26-15Thursday. (it will be removed after 3/12/15 Thursday).   Because of snow day 2/24 Tuesday for both sections of the lecture and because of snow day for 2/26 for the 9:55 section of the lecture, everything in the syllabus has been moved back about a week.   So your Quiz IV is now scheduled for 3/3 Tuesday and your Exam II is now scheduled for 3/10 Tuesday.   3/5 Thursday will be the "ask anything you want day".   I've been a little late with  returning your quiz because of making up and grading the 3 mini finals for my 3 sections of the lab (100 students) and because of the back log in returning your exams.     I returned the quiz to the 9:55 section and the graded Quiz IV is ready also for the 8:30 am section.   Here is the answer key and blank form for Quiz III.   You do not need to memorize the solubility rules for either the quiz or exam and a copy of the solubility rules is within the DocCameraNotes of 2/26.  

I will continue to cover more material after the material which will be on Exam II but that will show up on Exam III.   posted by Dr. Hahn on 2/27/15 at  2:10 pm  from her FMU office

Here is the DocCameraNotes2-19-15Thursday (it will be removed after 3/5/15)  I'm working hard to grade your quizzes.   posted by Dr. Hahn on 2/19/15 at 12:05 pm from her FMU office

For the Concentration Molarity lab please take a look at pages 127 to 133 (of the DocNotes of 2/17) for examples of how to calculate molarity from mass and volume and how to use the dilution equation.   This is especially true for the 8:30 am lecture class because I ran out of time and was not able to cover an example of a dilution equation. Here is the DocCameraNotes2-17-15Tuesday (it will be removed after 3/3/15). posted by Dr. Hahn on 2/17/15 from her Florence apartment

Here is the answer key and blank form for ExamI (all 4 versions, 2 versions for the 8:30 am T,R class and 9:55 am T,R class).   You will get Exam I back on Tuesday during class inside the file boxes.   Sorry for the delay but I did have to make up 3 different Mini-Finals for my 3 sections of the lab and then had to make up Quiz III (4 versions) for the lecture classes while grading 100 lab report forms all by myself.   The average on Exam I was 83 for the combined sections of my lecture.    posted by Dr. Hahn on 2/16/15 Monday at 2:25 pm from her FMU office

Here is the DocCameraNotes2-12-15Thursday (it will be removed after 2/26/15 Thursday)  The first few pages are answer to questions before the quiz.  Also a couple of pages from the last lecture are included because I did not finish a question in the last lecture.   2/12 lecture starts on page 99.  posted by Dr. Hahn on 2/14/15 Saturday at 7:36 am from her parent's Columbia, SC home

Here is the DocCameraNotes2-10-15Tuesday.  (it will be removed after 2/24/15 Tuesday)  posted by Dr. Hahn  2/11/15 Wednesday at 8 am from her FMU office LSF 303H

Here is the DocCameraNotes2-5-15Thursday. (it will be removed after 2/19/15).   Because the projector was broken in the LSF 301 lecture room on Thursday (broken bulb), I had to use the chalkboard during class.   So these notes are from my writing out the lecture after the class.   The cell phone pictures were from me standing on the lecture room table as I tried to get the projector to start.  I am still grading Exam I.  (7 page, 2/3 not multiple choice while I am grading 100 x 3 to 5 page lab report forms)

If any of you were looking for me on Friday afternoon, I was at my dentist (recommended by my parents) in Columbia SC.  

posted by Dr. Hahn on 2/7/15 at 8:50 am from her parent's Columbia, SC home

Here is the DocCameraNotes1-29-15Thursday.  (it will be removed after 2/12/15).   Here is the worksheet from 1/29/15 and a list of the symbols and element names which you need to know.   Happy studying for Exam I.   I am pretty sure that you will all do very well on this exam.   posted by Dr. Hahn on 1/30/15 at 2:20 pm from her FMU office

Here is the DocCameraNotes1-27-15Tuesday.   (it will be removed after 2/10/15).   posted by Dr. Hahn on 1/28/15 at 12:15 noon from her FMU office

Before Exam I, you may want to take a look at QII and Exam I from the Fall 2014 semester especially the parts about the mole.  On the exam take a look at the multiple choice parts because the quizzes did not have any multiple choice.   I want you to get an idea of what kinds of questions are on the multiple choice.    Fall2014-QII   Fall2014-ExamI  

Next class, I will have the graded QII (this semester) and a useful handout.   Here is the answer key to Spring15-QII.

You should also come with any questions about anything that you think will be on the exam.  I'll answer questions until you run out of questions.  posted by Dr. Hahn on 1/27/15 Tuesday 10:50 pm from her Florence apartment

******

 Here is the DocCameraNotes1-22-15 (it will be removed after 2/5/15 at 8 pm)   Note:   You just have to memorize element symbols and element names only for the elements listed on the Periodic Table below and in the body of the Document Camera Notes for 1/22/15.   NO YOU DO NOT NEED TO MEMORIZE ELEMENT'S ATOMIC MASS NUMBERS OR ATOMIC NUMBERS.    You will have the periodic table with the quiz.   What crazy person would have students memorize atomic mass number and atomic numbers ?  

posted by Dr. Hahn on 1/23/15 at 9:30 am from her FMU office

Here is the Periodic Table showing elements for which you should learn the symbols and chemical names.  posted by Dr. Hahn at 1/22/15 at 3:30 pm from her FMU office

Here is the answer key to QuizI.  The blank sheets of all 4 forms of the quiz are also included.   posted by Dr. Hahn at 1/21/15 Wednesday at 1:05 pm from her FMU office

Here is the DocCameraNotes1-20-15. (will be removed after 2/3/15 at 8 pm).    posted by Dr. Hahn at 1/20/15 at 8:40 pm from her Florence apartment

Here is the DocCameraNotes1-15-15.  (will be removed after 1/29/15 at 8 pm)  The Extra Credit on the quiz will be on the material discussed on the day of the quiz (1/20/15Tuesday).     I will finish covering the material at the tail end of the 1/16 lecture.    posted by Dr. Hahn at 1/16/15 at 12:15 noon from her FMU office

Here is the General Chemistry I Lecture Syllabus Spring 2015.   You may also want to take a look at the "Significant Figure" information under the lab section to help you with the "Math Practice" handout which you should be receiving in your labs.   I have also set up the "Mastering in Chemistry" homework pages for all the chapters.   The Mastering for all chapters is due (final deadline) of 4/23/14 at 8 pm.   That is very last day that the class meets.   I did not want you spending the day before the final exam trying to get HW points.    posted by Dr. Hahn at 1/14/15 at 9:55 am from her FMU office

Spring 2015 General Chemistry I Lab

Here is the BoyleLawExcelPlot.   To plot your own plot, select the excel plot columns -->  insert --> charts choose scatter plot --> add chart element -->  axic title --> primary horizontal (volumen mL) -->  primary vertical axis (P or 1/P in atm)  -->  trendline options  -->  display equations.    To edit the exisitng plot, in put your own data  into the (lower) data chart and your chart will change to your data plot.   double click on title and edit that, double click on the axis title and edit that, double click on the axis line and change the axis boundary.   These directions are for the most recent version of excel.   You will have to play around a little bit to get your best plot.   posted by Dr. Hahn on 3/22/15 Sunday at 11:30 am from her parent's Columbia, SC home

*******************

For the formula ZnxOy lab the theoretical percent Zn in the Zn x O y (where x = number Zn in formula and y = number O (oxygen) in the formula)

% mass of Zn in Zn x O y = { (x * 65.39)  / [ (x * 65.39) + (y * 16.00)] } * 100

Keep in mind that to calculate the experimental  number of grams of oxygen, you have to subtract the experimental   mass of the metal oxide by the mass of the Zinc used.   Also by common sense, if you want the mass of the Zn and you measured the mass of the Zn in a dish, you have to subtract off the mass of the dish.    Hope this helps.    posted by Dr. Hahn at 9:10 pm 2/10/15 from her Florence apartment while grading the Chem 101 Lecture exam.

Here is the Density Excel Spread sheet. (for Burundum) in Part II of the density lab.   You may change the chart numbers to generate the density plot.  I used the data on page 29 of your labbook which shows a plot by LoggerPro.    To do a similar plot for your data, write your data by replacing my data with your data.   The plot should change to your plot.    You may have to adjust the axis a little bit and change the title.   This plot from the Spring 2015 semester is a little differnt from earlier semesters.   I changed the axis limits bigger so that this chart should work for both the Copper and Burundum.

Or you can input your data with volume on left and mass on right.   Select all of your data and then go to insert and choose X,Y scatter plot with a line with dots drawing.   Go to Chart Tools and choose Layout.   You can pretty up your chart with Chart Title, Axis Title, and  Axes.   To get the line equation, select Trendline and More Options.   Select Display Equation on chart.   You will get an equation of y = m x + b where m = slope = density.     posted by Dr. Hahn 1/19/15 at 11:10 am from her parents Columbia, SC home

Here is the useful information about significant figures from the Lecture textbook which may help you complete the Math Practice handout.    SignificantFigure   I am also posting your General Chemistry I Lab Syllabus Spring 2015.   posted by Dr. Hahn at 1/14/15 at 9:55 am from her FMU office

Fall 2014 - General Chemistry I Lecture

This past semester I had one student who said that he turned in a lecture exam and I had a student who said that she turned in a lab report into my turn in box.    Neither the lecture exam nor the lab report was found among my other lecture graded exams nor among my graded lab reports.   I have never in my life accidentally lost anything that any student turned into me.   True in the General Chemistry I Lecture I did have {quizzes ( 7 quizzes x 110 students  = 770)  + HW (110 x 8 chapters = 880) + attendance (45 x 110 = 4950 individual dates) + BB (5 x 110 = 550 ) + 3 exams  (3 x 110 = 330) + 1 final  (110) =} ~ 7590 individual grading things to keep track of.    True in the General Chemistry I Lab I did have {(12 lab reports x 80 students = 960 lab reports) + (3 mini finals x 80 students= 240 finals) =} ~1,200 individual grades to keep track of.    

I have absolutely no possible reason for wanting to deliberately "lose" a student's exam or lab report.   Why would I want to do such a thing ?   I don't want that kind of trouble.   The "lost" exam student actually signed into the "sign - in sheet" that I have at every exam.   The "sign-in sheet" has the student's printed name, signed name, and  exam number (I individually manually number every exam for every exam and quiz).   The "sign - in sheet" is actually a detailed map of exactly where every student was sitting during the exam.  

What I remember about this "lost exam" student is that on the week when I was to return the graded exam, this student walked around the lab (student was both in the lab and my lecture class) not wearing safety glasses.   This is a lab in which about 3 or 4 students (in the previous semester) had a small explosion in a test tube as the reaction exploded and completely shattered the test tube.   I had told my students that this was a lab where students had an explosion.   I had even told the students in which step the explsion had occurred.  

My policy is that when a student does anything unsafe in the lab, I penalize the students by removing 10% of their lab report grade.  I penalized the student for not wearing safety glasses and I got arguments galore from this "lost exam" student.   At the very next lecture, I returned the graded lecture exams and the student stated that I had not returned his exam.     Maybe the "safety glass incident" was not,  but it felt like a "shake down intimidation tactic" from the "lost exam" student.      Boy, I get all kinds of students from these kinds of students to the best hardworking students who do everything I ask them to do.   You know what I think?   I think the student who actually learns the Chemistry (not how to scam the system) is the student who is going to get the best job and advance the furthest in their careers.    Ten years from now, I would be really curious to see.   

posted by Dr. Hahn at 10:30 am 12/22/14 Monday from her parent's Columbia, SC home

************

Here is the answer key for the  FinalExam.   posted by Dr. Hahn on 12/18/14 at 8 am from her parent's Columbia, SC home

********************

Final Grades Explained:  

I posted your final grades online the morning of 12/10/14 and I posted your final grades inside the glass case on 12/10/14 around 11:30 am.   Every last point which you earned is posted there.  This updates the most recent “EX” post which showed all of the excused absences.

The final exam grade is posted as a % grade.   Your final exam grade is totally unadjusted but is just the grade which you earned.    The final exam between the two sections was within one % of the other section’s grade.

According to the syllabus, I promised to drop your two lowest grade quizzes.    You can see which quiz grade was dropped because I put an “x” before the dropped quiz grade.   Your 2 dropped quiz grades could be for 2 zeros as a result of missing 2 quizzes without a documented excuse.   If you took all your quizzes, your 2 dropped quiz grades would be for your lowest 2 quiz grades.

Your lab grade is also reported as a % grade.   The lab grade is shown as “raw lab” (lab grade submitted by your lab professor) and “adj lab” (lab grade after adjustment) with “lab prof”.   If the average of the lab grade submitted to me from your lab professor was over 80%, I did not adjust the lab grade.    I adjusted the grades from only a few lab professors to match the other lab section averages.  I did not adjust any of the lab grades down to a lower grade.   I posted the “lab  prof” because I didn’t want you to believe that I had adjusted your lab grade unfairly.  No, I did not just adjust your lab grade at my will any old way.

Because some of did not do any “Mastering” homework and since some of did not do any “Black Board participation”, I adjusted those columns a little bit.  If I had not, there would have been a lowering adjustment to the final grade (a lower grade curve).   I assigned zeros to anyone who had no “HW” and “BB” grade and then adjusted the average of “HW” and “BB”   to a reasonable average.   (because otherwise the averages on those things would have been something like 60% or a normal D, or a lowering adjustment as a result of HW and BB at the end of the semester)

The final posting (of 12/10/14) shows the replacement of your lowest one (and only one) exam grade by the final exam grade (if the final exam grade was higher than any of the exam grades).    The replaced exam could have been a zero which you earned as a result of you having missed one exam without documentation.    The replaced exam grade could also be for just a low exam grade.   So if you showed improvement by doing better on the final exam than you did on one of the exams, you would have had the low grade replaced by the final exam grade.    (If you missed an exam with an acceptable documented excuse, I would have replaced it by an averaged grade.   If I averaged and plugged in, your lowest grade could have been the exam that you missed or it could have been one of the other exam grades.)

The formula which I used to replace your documented excused absence grade is:   (for example if you missed QV with a valid documented excuse – such as a doctor’s note)

QV missing / your own average on all quizzes = Q V average of the class / class average on all quizzes

To get your “grade final”  column (ave = average) =

 [{(Quiz_ave*5)+(Exam_ave *3)+HW_adj+BB_adj+[(adj Lab)*2]+EC_attend+(Final Exam*2)}/820]*100

{quiz grade average is a maximum of 20 pts (Some people had EC on quizzes which resulted in a grade for the quiz average of higher than 20 pts.), exam average is a maximum of 100%, HW maximum is 10 pts, BB maximum is 10 pts, Lab grade = 100% maximum, EC attendance = 15 pts, Final Exam grade has a maximum of 100%)

(Quizzes were always given in the last 15 minutes of class.   Extra Credit on quizzes were given for questions about material covered the day of the quiz in the lecture immediately before the quiz.   Sometimes I did not cover what I expected to cover by quiz time which is why the Extra Credit was Extra Credit.)

90 to 100% for the “grade final” was an  A       85 to 89% B+        80 to 84 % was a B         75 to 79 % was a C+       Pretty low to 74% was a C

Significant % points below the lowest C was a D

I had no F (I did have a few drops.)     I used to have a strict below 70% is a D+ but one student who had below 70% and earned a D+ complained.   I was not reprimanded and the student did not complain that I had graded incorrectly or unfairly but just that I had not moved the end of the C below 70% although there were a lot of students with grades  only a point or so below 70%.   Those of you who passed the class with an average below 70%, I will warn you that you may have a difficult time passing General Chemistry II.

If you find any errors, please email me ASAP.   If you want to look at your graded final exam, I am going to ask that you hold off until the start of the Spring 2015 semester.   I think it looks a little weird to meet with a student to discuss grades in an empty building in a closed campus.    Email me in Spring 2015 and make an appointment and I will let you look at your graded final exam together with the answer key with common points.    (Honestly after I am done with grades, I can’t even look at the grades and final exam  until I let my brain veg out for a while.)

I did grade your final exam entirely by myself  (except for my Dad who helped me with adding up points)    I am pretty sure that I did a good job of grading your final exam but I did go almost 2 days without sleep near final grades time so it is possible that you may be able to find an error.   If you find any errors, I will submit a change of grade form for you in the Spring semester. 

I do want to say that I enjoyed working with all of you and I know that you all worked very hard this semester.   After all 7 quizzes, 3 exams, online homework, BB discussion and weekly lab  is a lot of work.   I hope you all enjoyed General Chemistry and learned not only Chemistry but that if you put in work and effort you can do really well on almost any class.     Have a good Christmas and see you around next semester (although not in Gen Chem II because I am teaching Gen Chem I lecture and lab.)   Best wishes and I hope that you do well on all your classes.

posted by  Dr. Juliet Hahn   12/16/14 at 11pm from her parents Columbia, SC home

******************

Here is the Quiz VII answer key.   I thought I had already posted it but I had not.  posted by Dr. Hahn on 12/2/14 at 1:15 pm from her FMU office LSF 303H

Here is the DocumentCameraNotes-11-21-14Friday.   It will be removed on 12/1/14 Monday.   Here is the answer key for Exam III (I forgot to scan in the blank form.   I left the blank exams in my office so I will add them on Monday when I get back from my parent's Columbia, SC home where I go every weekend.)   posted by Dr. Hahn on 11/22/14 at 8 am from her parent's Columbia, SC home  

PS:   I do have a lot to do this weekend.    I have to finish grading the exams, make up a quiz for you guys for Monday, grade the lab 80 mini final III(I have 26 more to come in on Monday), grade the last 4 page x 80 student lab report   Boy, Friday was very hectic.   I had to finish grading your exam III (enough to make up the answer key).   I had to make up Quiz VII.   I had to give a Mini-Final to my Friday lab section. 

Here is the DocumentCameraNotes-11-19-14Wednesday.   It will be removed on 12/1/14 Monday.   posted by Dr. Hahn on 11/19/14 at 12 noon from her FMU office LSF 303H

Here is the DocumentCameraNotes-11-17-14Monday.   It will be removed on 12/1/14 Monday.   On 11/14/14 we of course had Exam III and on 11/12/14 we had review for Exam III so there were no notes.    posted by Dr. Hahn on 11/18/14 at 10:30 am from her FMU office, LSF 303H

Here is the answer key and blank form for Quiz VI.   Note the answer to form 9B #1 is Ba is bigger and N has higher ionization energy.   I didn't want to scan in that particular form after the correction because scanning in corrections (to an already scanned in document) takes a lot of time.  Here is the DocumentCameraNotes-11-10-14Monday.   It will be removed on 11/24/14Monday.   posted by Dr. Hahn on 11/11/14 at 4:15 pm  from her FMU office, LSF 303H

*******************

Here is the DocumentCameraNotes-11-7-14Friday.  It will be removed on 11/21/14 Friday.   posted by Dr. Hahn from my parent's Columbia, SC home  at 2:35 pm 11/8/14

*************

Some Information about the Final Exam:   The final exam will be ~1/3 multiple choice, ~1/3 short answers and ~1/3 long answers.   It will be about 2 times as long as a regular exam.    The multiple choice part of the final exam will include the exact same multiple choice questions from your own section's multiple choice questions.   However only about 1/3  to 1/2 of the multiple choice questions from your Exam I, II and III will appear on the Final Exam because otherwise the multiple choice will be too long.   The multiple choice questions will be scrambled by question number and question choice so it will do no good to memorize that the answer to question #2 is the letter B because it will be all scrambled.   (the multiple choice questions on the exams are always scrambled by question number and answer choice between the 2 versions of the exams anyway).    There will be a few new questions from material not yet covered on any of the exams.    The short answer and long answers will be similar to but not the same as questions from old exams and quizzes.    In any case the final exam will not be the standardized ACS final exam and will not be the same exam as given by other professors.   (So if you miss the final exam, you cannot take it in one of the other professor's sections.)   If you miss the final exam without documentation, you will earn a zero on the final exam.   If you have documentation because of the deadline for turning in grades, I will assign an incomplete for your fianl grade and then at a time convenient to both you and me, I will give a make up final exam.   The make up final exam is never the same exam that everyone else took.   I will post the answer key to the Final Exam as soon as both sections of my lecture have taken the final exam.  

There is always a rumor towards the end of the semester that I am quitting (sick with cancer, getting married, having a baby - some other ridiculous story) and that  someone else will take over my classes and will be assigning your grade (presumably because I won't be here).    This is not true.   I am not quitting and I will absolutely give the type of Final Exam which I stated I will be giving on the syllabus.     If you believe the rumors and study for the wrong type of exam, the only person who will be hurt is yourself. 

posted by Dr. Hahn on 11/6/14 Thursday at 9:05 am from her FMU office (LSF 303H)

Here is the DocumentCameraNotes-11-5-14Wedesday.   It will be removed on 11/26/14 Wednesday.   posted by Dr. Hahn on 11/5/14 at 4:30 pm  from her FMU office

Here is the DocumentCameraNotes-10-31-14Friday.   It will be removed on 11/14/14 Friday.  

Here is the answer key and blank form for Quiz V.  posted by Dr. Hahn on 11/1/14 from her parent's Columbia, SC home.

Here is the DocumentCameraNotes-10-29-14Wednesday.   It will be removed on 11/12/14 Wednesday.   posted by Dr. Hahn on 10/29/14 Wednesday from her FMU office

Here is the DocumentCameraNotes-10-27-14Monday.   It will be removed on 11/10/14 Monday.  Quiz V ends after electron configuration of elements and electron configuration diagram for elements.   You should be able to give the electron configuration and diagram for any element in the periodic table but not Lanthanides and Actanides and not the last 2 rows of the periodic table (so not any element in period 6 and period 7)   posted by Dr. Hahn on 10/27/14 Monday at 4:15 pm from her  FMU office

Here is the DocumentCameraNotes-10-24-14Thursday.   It will be removed on 11/7/14 Friday.   posted by Dr. Hahn on 10/25/14 at 4 pm from her parents Columbia, SC home

Here is the DocumentCameraNotes-10-22-14Wednesday.   It will be removed on 11/5/14 Wednesday.    This combines the notes from 10/20 Monday and 10/22 Wednesday because I was busy finishing up grading your Exam II so I waited until today to post them.   posted by Dr. Hahn on 10/22/14 at 12:30 pm from her FMU office (becasue lab starts on Wednesday at 1:30 PM).

Here is the Document CameraNotes-10-17-14Friday.  It will be removed on 10/31/14 Friday.  posted by Dr. Hahn on 10/18/14 at 8:30 am from her parent's Columbia, SC home

Here is the answer key and blank form for Exam II.  I am still grading it.   It will probably take about a week to finish grading.   I wouldn't worry too much about it.   As long as you gave it your best effort, I think it will be OK.  Trust me.  posted by Dr. Hahn on 10/16/14 at 10:20 pm from her Florence apartment

Here is the DocumentCameraNotes-10-10-14Friday.   It will be removed on 10/24/14 Friday.   Here is the answer key and blank form for          Quiz IV. (updated to correct minor errors in the precipitation reaction on 10/13/14 at 9 pm from her Florence apartment)  Exam II will be on 10/15/14 and will be 1/3 multiple choice, 1/3 short answer and 1/3 long answers.   It will covered from naming (binary ionic, binary covalent, etc) from Chapter 3 to all of Chapter 4 and Chapter 5 up to what I discussed on Friday (ideal gas law, combined gas law problems)  (I anticipate that   Exam III will then start after combined gas law of Chapter 5, Chapter 7, Chapter 8, Chapter 9 (& maybe a part of Chapter 9 &/or 10) (I anticipate that the Final exam will start with part of Chapter 9 &/or 10)  

To study for Exam II, please study all of the material on Quiz III and Quiz IV.    I will do my best not to ask the same questions so the idea is to understand how to answer the questions on QIII and QIV.   I will return your graded Quiz IV with answer key on Monday.   Then you can ask as many questions as you want until you run out of questions on Monday 10/13/14.  I will then go on with material which will be covered on Exam III. Please start studying for Exam II as soon as possible.   You should already have studied for parts of Exam II to study for Quiz III and Quiz IV.   Good luck studying for Exam II.   Make me proud that you are my students by studying hard for Exam II.  

(posted by Dr. Hahn on 10/11/14 at 3 pm from her parents Columbia, SC home  

Here is the DocumentCameraNotes-10-8-14Wednesday.   It will be removed on 10/22/14 Wedneday.  posted by Dr. Hahn on 10/8/14 Wednesday at 12 noon.   from her FMU office

Here is the DocumentCameraNotes-10-6-14Monday.   It will be removed on 10/20/14 Monday.   posted by Dr. Hahn on 10/7/14 Tuesday at 9:10 am

Here is the DocumentCameraNotes-10-3-14Friday.   It will be removed on 10/17/14Friday.   posted by Dr. Hahn on 10/4/14 Saturday at 11:40 am from her parent's Columbia, SC house

Here is the DocumentCameraNotes-10-1-14Wednesday.   This will be removed on 10/15/14 Wednesday.   posted by Dr. Hahn on 10/1/14 at 10:00 pm from her Florence apartment

Here is the DocumentCameraNotes-9-29-14Monday.   This will be removed on 10/13/14 Monday.   posted by Dr. Hahn at 9/30/14 at 4:30 pm from her FMU office

Here is the DocumentCameraNotes-9-26-14Friday.   This will be removed on 10/10/14 Friday.  posted by Dr. Hahn at 9/29/14 at 8:40 am from her FMU office

Here is the answer key and blank form for QuizIII.   Here is the answer key and blank form for Exam I.  I changed laptops and for some reason I was unable to print out the key on one of my printers.  If you are unable to print out either Quiz III or Exam I, let me know preferably by email or in class.   posted by Dr. Hahn on 9/27/14 11am from her parent's Columbia, SC home

Here is sthe DocumentCameraNotes-9-22-14Monday.   This will be removed on 10/6/14 Monday.   Here is the DocumentCameraNotes-9-24-14 Wednesday.   This will be removed on 10/8/14 Wednesday.   I am now going to work on your Quiz III.   I forgot to draw the red line from Wednesday's class for the ending of the Quiz III material.   The last part of Quiz III will  be page # 133 of the 9/24/14 notes.   posted by Dr. Hahn from her Florence apartment

Here is the DocumentCameraNotes-9-19-14.  This will be removed on 10/3/14 Friday.   posted 9/22/14 at 9:10 am by Dr. Hahn from her FMU office

Here is the DocumentCameraNotes-9-12-14.  This will be removed on 9/26/14 Friday.   Exam I will be on 9/17 Wednesday as originally stated on the syllabus.   Exam I will cover everything since the beginning of the semester to naming binary ionic compounds discussed in Friday 9/12/14 class.   The only material covered on this exam will be the material covered in class.   Nothing in the textbook not covered in class will appear on the exam unless specifically mentioned in class.  

In points this exam will be ~1/3 multiple choice, ~1/3 short answers (fill in the blanks) and ~1/3 long answers (word problems).   You may want to take a look at Exam I from the Spring 2014 semester to get an idea of the format of the exam.   Just keep in mind that Exam I from this semester does not necessarily cover the same material covered in the Spring 2014 semester since the number of days to the exam is slightly different and since I preset exam and quiz dates and then put on the exams and quizzes materials which I have covered by then.   I do not say that I will give an exam as soon as I cover all of chapter 3 for instance.   So if you see something on the same quiz and exam number from the Spring 2014 semester which I have not yet covered, do not try to learn that material because that material will be on the next exam.  

(1) Study Quiz I and Quiz II from this semester.   (understand how I got the answers in the answer key by looking at the answer.   Then after a wait of at least 15 minutes, take all 4 forms of the quizzes as if you are taking an exam.   Check your answers against the answers on the quiz to see if you got it right.  If you got it wrong try to figure out why.)

(2)  Study the examples from the lecture notes from this semester.   If you missed something you may want to take a look at the document camera notes to make sure that you understand how I answered the examples from the lecture.   Study the examples like you studied the quizzes.

(3)  Study the rest of the lecture notes for things that I said were good things to put as a part of a multiple choice question

(4)  Make sure that you memorized all the things that I asked you to memorize in the lecture notes  (examples of things that I asked you to memorize:   1000 milligrams = 1 gram, Ag is the chemical symbol for silver, the definition of the mole is ?, parts of the periodic table, ...., etc)

(5) Note that the multiple choice comes from the textbook test bank.   Also note that the "Mastering" multiple choice questions also come from the textbook.   The way that questions are asked is kind of similar between the "Mastering" and the multiple choice part of the exam.

(6) Anytime during this process, if you don't understand something and can't figure it out, look in the textbook.   You may want to take a look at the examples of the worked problems in the textbook similar to the examples which I covered in the lecture.

General Chemistry is one of those subjects where simply "understanding" the lecture may not be enough.  Watching someone work a word problem is very differnt from you solving the word problems yourself.

On Monday I will return Quiz II.   I xeroxed the answer key for Quiz II on Friday and I know that I will have that to return to you Monday with common points that I took off for common mistakes.   I will return your graded quiz II on Monday.   (It actually takes me about an hour to put all of your quizzes into the folders and since my first Gen Chem I lecture class starts at 9:30 am followed by the 10:30 am class, I really have to start putting the quizzes into the folders by around 8 am.

Make sure that you come to class on Monday.   If you want the best chance of doing well on Exam I, you should be there.  

posted by Dr. Hahn at 10:44 am from her parent's house in Columbia, SC

Here is the answer key and blank form for Quiz II.   posted by Dr. Hahn on 9/13/14 Saturday at 9:50 am from her parent's house in Columbia, SC

Here is the DocumentCameraNotes-9-10-14.  This will be removed on 9/24/14 Wednesday.   posted by Dr. Hahn at 11:50 am from her FMU office

Here is the DocumentCameraNotes-9-8-14.  This will be removed on 9/22/14 Monday.   posted by Dr. Hahn at 4:30 pm from her FMU office

Here is the DocumentCameraNotes-9-5-14.  This will be removed on 9/19/14 Friday.  posted by Dr. Hahn at 9:40 pm 9/7/14 from her Florence apartment

Here is the DocumentCameraNotes-9-3-14.  This will be removed on 9/17/14 Wednesday.   posted by Dr. Hahn at 1:15 pm 9/3/14 from her FMU office

Here is the Periodic Table showing elements for which you should learn the symbols and chemical names.

Here is the DocumentCameraNotes-8-29-14.   These notes will be removed on 9-12-14 Friday.  Please note that on 8-27-14 because of our first quiz, I spent a lot of class time answering questions so that I did not make much progress in the lecture course content.   I included all of the lecture content of 8/27/14 and 8/29/14 in these document camera notes but left off all of the questions which I answered before Quiz I.   posted by Dr. Hahn 9/2/14 from her FMU office

Here is the answer key and blank form for Quiz I.   I thought that I had already posted it because it shows up on my desktop but I apparently had not.   posted by Dr. Hahn 9/2/14 at 11 am from her FMU office

Here is the DocumentCameraNotes-8-25-14.   These notes will be removed on 9-8-14.   posted by Dr. Hahn on 8/26/14 at 9:10 am from her FMU office

Here is the DocumentCameraNotes-8-22-14.   These notes will only be up for about 2 weeks and will be removed on 9/5/14. posted by Dr. Hahn on 8/24/14 at 6:50 pm from her Florence apartment

Here is the Syllabus for the General Chemistry I Lecture for the Fall 2014 semester.  posted by Dr. Hahn on 8/20/14 at 3:45 pm from her FMU office  

I have posted all of the homework questions which you are assigned for the entire semester on "Mastering".  It would of course be very difficult to do them now before I have covered the chapters.    You get unlimited attempts until the final deadline 12/1 at 8 pm.   You only lose points if you give up on answering the question.   "Mastering" says that each chapter should take you about 30 minutes to complete.    Attempt the homework after I finish covering the chapter.   You do have to get the correct answer in order to get the points though.   (PS:   on questions which are essay, I actually do not grade the answers by reading the essay.   If you attempt, I will give you credit.)  

I have also set up all of the "Discussion - Question and Answer" forums on BlackBoard.  You will only get credit for the Part I of the forum until 9/8 Monday at 8 pm.   Then Part I will disappear and you will not be able to post to that forum.   All parts are visible now but only post to Part I until 9/8 Monday at 8 pm.

Here is the ConnectingToBlackboard document from the FMU IT department.    If you have any difficulties with Blackboard, please contact the FMU help desk at 843-661-1111.  If you have difficulties with the "Mastering" refer to the "Mastering" handout page in your syllabus packet and the "Mastering" customer support.  You can only sign up for "Mastering" if you purchased the access code either with your text book or as a stand alone access code.   (NOTE:   I do have a typo on the "Mastering" which says that you get 5 pts of 800 pts.   It should say 10 points of 820 pts.)    posted by Dr. Hahn on 8/21/14 Thursday  3:30 pm from her FMU office

(PS:   Don't worry if you aren't able to do both of these immediatly.  The "Mastering" deadline is the end of the semester and the BB Part I deadline is 9/8/14 Monday at 8 pm.)

#############################

Fall 2014 General Chemistry I Lab

Here is the Boyle's Law Excel Plot.  

To change the spread sheet to the spread sheet for your data, input your data into the very last chart next to the plot.  You should be able to modify your plot just as you did for the density excel spread sheet.   (see below). 

If you want to do the plot yourself, just input your chart from your page 2  Chart B into a spread sheet exactly as shown on your data sheet page 2.   Then select all 3 columns and all 9 rows.   Then do insert - scatter - choose the drawing that shows lines with little dots on them.  This will give you a chart.   Among "chart tools" you can choose chart title , axis title to pretty up your plot.   To print just the chart, click on the chart and print.   To print your spreadsheet and chart, click anywhere on the chart and both will print out.  

posted by Dr. Hahn on 10/27/14 at 11:30 am from her FMU office

To Study for the Mini Final Exam I:   You should in general study with the overall idea that if you did the lab report yourself and knew and understood what you were doing that you should do well on the Mini Final Exam.   If you did the lab report form by letter by letter copying from someone with no idea of what you were writing down, you will not do well.  The Exam will be fill in the blank and word problems and nothing else.   It will not be open book.  

 I would not try to study for the mini final by memorizing the reactions or exactly how you did each experiment in detail step by step.    If I am going to ask you a question about a reaction, I will give you the reactions and ask you things about the reaction.  If you need a formula such as (density = mass/volume), I will provide the equation on the exam.   If you were doing the lab report form, you would not have these things memorized because you can look this up in the lab book. I am not looking for you to have this type of stuff to have memorized for the Mini Final.    I could ask questions about general technique.   I could ask questions about overall what or how you do something in general.   Example:   How do you determine density ?  type of answer I am looking for:   weigh stuff, get volume of stuff by measuring the volume with and without the stuff  in some amount of water ANSWER NOT LOOKING FOR:   on page 113, weigh 20 pieces if you have copper and 10 pieces if you have burundum using balance in front room.   Do this on three different balances.  zero the balance.   add the pieces on an evaporating dish and weigh,  subtract the dish from the weight with the stuff on it the directions say to measure out 40 mL of water and add pieces then measure volume, then measure out 50 mL of water add pieces and then measure volume, etc....  

I am going to write a Mini Final Exam I should take you about 15 to 30 minutes to complete.   posted by Dr. Hahn   at 3:30 pm 9/20/14 from her parent's home

*****************************************

To those of you in my sections of the General Chemistry I Lab (Monday 12:30 pm, Wednesday 1:30 pm and Friday 12:30 pm LSF 301/MSB 318):

I entirely forgot to go over the things that you need for the "Names and Formulas" part of the lab report form in the Friday section but covered it for my Monday and Wednesday sections.   You are still responsible for completing this portion for 16 points.   The list of formulas and names is on page 97 of your lab book and the rules for how you name is on page 98 of the lab book as pointed out in the text of the question.

An example which I covered in some sections:   you always in both the formula (NaCl) and the name (sodium chloride) always give the + ion (cation) on the left and give the - ion (anion) on the right.

#1 name sodium acetate is (looking at the names on page 97 of your lab book)  sodium = Na⁺ and acetate = CH₃COO^-    the formula has to be neutral so you need one sodium to one acetate

Na CH₃COO

# 5   Na₂SO₄ is sodium sulfate (because all of these names are ionic, you do not need number prefixes in any of the ones that I gave you so not disodium sulfate but just sodium sulfate)  (sorry there was a typo on the lab report form for   #6   Ba₃NO₃ (it should really be Ba(NO₃)₂  The name would be the same.

#4 ammonium sulfide is (NH₄)₂S (becasue NH₄ is +1 and S is -2)

Here is the Density Excel Spread sheet. (for Burundum) in Part II of the density lab.   You may change the chart numbers to generate the density plot.  I used the data on page 29 of your labbook which shows a plot by LoggerPro.    To do a similar plot for your data, write your data by replacing my data with your data.   The plot should change to your plot.    You may have to adjust the axis a little bit and change the title.

Or you can input your data with volume on left and mass on right.   Select all of your data and then go to insert and choose X,Y scatter plot with a line with dots drawing.   Go to Chart Tools and choose Layout.   You can pretty up your chart with Chart Title, Axis Title, and  Axes.   To get the line equation, select Trendline and More Options.   Select Display Equation on chart.   You will get an equation of y = m x + b where m = slope = density.  

 posted by Dr. Hahn 8/24/14 at 9:30 pm from her Florence Apartment

Here is the LabSyllabusFall2014.   posted by Dr. Hahn on 9/14/14 from her Florence Apartment

############################

Summer II 2014 - General Chemistry II Lab (section 0014)

Here is the promised  Kinetics Help handout.   Instead of re-scanning in the, this is the handout from the Spring 2013 semester.   It is essentially the same as this semester except for the number of the experiment and the number of some questions.  Hope this helps.   posted by Dr. Hahn on 7/21/14 at 10:40 pm from her Florence apartment

I am attaching an excel spreadsheet for the plot that you need for the "Kinetics" lab.   Your number of drops should be exactly the same as my data.   Your time should be different than my data and dependent on your data.   What you can do is average the times for your two runs of your kinetic data (A1 & A2 are your two 11 drops of thiosulfate runs) and then input those values into my spreadsheet column A.    Then the entire plot should change to your plots.  I think this should work.   In any case, you will at least have an excel spreadsheet as an example for what to do for your plot.    posted by Dr. Hahn on 7/20/14 at 11:15 pm from her Florence apartment  

[PS:   If you "x = time" scale is way off, you can change the scale {the range of the numbers the x axis covers} by (a) double clicking on the line of the "x" axis (b) go to the "scale" tab  (c) change the "minimum" or "maximum" number as needed]

*************

Here is the Syllabus for the General Chemistry II Lab.   The Normality lab report form will be due on 7/14/14 before 1:15 pm.   The first lab mini-final (on the normality and safety) consisting of at most one or two questions will be give starting at 1:15 pm.   If you come to LSF 301 after I have collected the mini-final, you will not be allowed to take the mini-final.   This would be counted as a missed mini-final.   You get to drop one and only one mini-final this semester.   If you miss more than one mini-final, you will earn a zero on the missed mini-final which will not be dropped.   If you miss all the mini-finals, your final grade will be 25% lower grade than otherwise.    posted by Dr. Hahn   7/9/14 at 9:10 am from her FMU office

**********************************

##############

 Weather Update Snow II           snow II weather updates are in this hyperlink    (including the revised schedule after Snow II)

Weather Update for Exam I in General Chemistry I Lecture Spring 2014 (this blue line about "Weather Update ... Spring 2041"  is the hyperlink for all of the weather updates associated with the January snow

****************

Spring 2014   General Chemistry I Lecture (sections 5162 T,R 8:30-9:45 am  LSF 301) & (section 4752 T,R 9:55 am - 11:10 am LSF 301)

Here is the FinalExamSpring2014 from the Spring semester.   I had just not had a chance to post them until now.   posted by Dr. Hahn 8/26/14 at 10:30 am from her FMU office 

Here is the answer key to the "Molecular Structures Handout".   I would study it and make sure that I understand the questions (as if it were another lecture quiz) before the final exam.   The deadline for you to turn  in the "Molecular Structures Handout"  is 4/21/14 at 11:10 am.   After now, you will earn no points on the handout.   The way I am going to grade your "Molecular Structures Handout" is to give you full points if you turned in the handout.   I am not going to actually grade the handout at all.   Because I  went over the lecture information needed to answer question #7, question # 9 and the "Polarity" and the "Line -Dash - Wedge Drawing" and  "Polar or Nonpolar molecule" on the day that the handout was due, I am just going to give full credit for those questions by just not grading the handout at all.   

So if you turned in the handout at the end of the 4/17/14 class period, you will get full credit no matter what kind of answers you put on the handout.   If you turn in the handout after 4/21/14 at 11:10 am (when I said that the handout will be worth zero points), it will be worth zero points.   I did point out (several times) that it is more important that you pay attention to my lecture and prepare for the final exam than that you try to get points on this handout.  So those of you who have buddies in Organic (who helped you do stuff that I had not yet covered in the lecture) will have no advantage in your grades on the "Molecular Structures Handout" than anyone else in the class.  

I am making up your final exam now and have not yet finished grading your last lab mini-final, and have not yet started grading your "Mastering" online homework and your BlackBoard discussion.   I will start grading the "Mastering" and BB discussion after the deadline is up.   I also have to go in manually and cross off your lowest quiz grades, manually calculate your excused absence grades for quizzes and exams and manually look at your lowest exam grade vs. your final exam grade.   I also have to manually count up number of absences for the extra credit for attendance.   Please note that I have to do all of this for 150 students so all of this is going to take quite a bit of time to complete.

Let me warn you that you can still do "Mastering" after the deadline but the "Mastering" will not give you any points past the deadline.   I can also tell when you posted your BB discussion and I will not grade past the deadline.    The idea here is that I want you to do well on the Final Exam in my class and other classes by not spending your last few minutes before your Final Exams working on stuff of low point worth.

posted by Dr. Hahn on 4/21/14 at 11:30 am from her FMU office

************

If you take the final exam in the wrong section (the section where you are not listed as being in the class, i.e you told me that you are in the 8:30 class and have been taking all your quizzes and exams with the 8:30 am class and then come to the 9:55 am class  final exam) (8:30 class final exam is 8:30 am to 10:30 am 4/24 Thursday, 9:55 class final exam is 3 to 5 pm 4/24 Thursday both in LSF 301), I will penalize you 5 percentage points on the final exam.   If you tell me ahead of time that you will be taking the final in the other section and I said it is OK for you to do this, you will not be penalized.   If you have not previously told me that you want to take the final with the other section, please email me and make sure to get my permission to take the final exam with the other section class.  

If you do not tell me and  just show up,  I may run out of zeroxed final exams and spaces for people to sit to take the exam.   I announced this on 4/17/14 during our last class.   Please note that my syllabus (which you signed) states in writing that you are responsible for any announcements in class about class work whether you were present in class or not so stating that you were not aware of this new policy does not excuse you from this policy.  You are always supposed to either talk to one of your classmates or me about anything that you missed.

posted by Dr. Hahn at 10:05 am 4/18/14

Here is the DocumentCameraNotes4-17-14Thursday.  I am not including "hints" that I gave about what to study for the exam.   I have noticed that when I schedule the last day of classes (before exams) as a review that the majority of the class leaves when I ask for questions.   So this time I did not schedule time for questions.   I do want to point out that for the Final Exam you should study at the very least if you have no time at all:   

(a) multiple choice:   Exam I (8:30 class got 9:55 class exam), Exam II, Exam III multiple choice questions - you will get the exact identical question from the exams.   I will get rid of 1/3 to 1/2 of the questions and then I will scramble question number and question answer letter.   I will also have a few new multiple choice questions (not seen on your exam III) from chapter 8,9 and 10. 

(b) Short Answer and Long Answer:   study Exam I, Exam II and Exam III and Quiz VII and the "Molecular Structures" handout.   The questions will not be identical to but will be similar to the questions from old exams.   (The Final Exam question will be similar to the Exams, Quiv VII and handout in the way that the quizzes were similar to the Exams.)   You are responsible for both sections SA and LA questions.   You may also want to take a look at the Final Exam from Fall 2013.

If you have more time, you should also study all the old quizzes from this semester and the lecture notes.   If something was discussed in the textbook and I did not go over those things, you are not responsible for knowing this material.  In fact I would say that it is now too late to read the textbook.   You can look at my document camera notes although I have removed the links to the earlier document camera notes.

I will not hold you responsible for being able to draw the 3 dimensional drawings (using the wedge, line, dash) but you should be able to understand what those drawings mean in terms of vector sums for polar or nonpolar molecules.   I will also provide the VSEPRT handout and the Solubility Rules handout if I have questions about those on this final exam.   Anything which I provided on exams and quizzes earlier in the semester such as equations and constants will also be provided on the final exam. 

One comment about missing exams and quizzes:   I will let you drop 2 of the 7 quizzes this semester (either lowest 2 grades or ones you received a zero on because you missed a quiz without a documented excuse).   I will replace your one lowest grade exam of the 3 exams this semester (including a zero for an unexcused missed exam) with the final exam grade.   I would point out that the reason for so many quizzes and exams  is that in general (especially in lower level classes) students do better if there are more quizzes and exams because there is more opportunity to fail a quiz or exam and still manage to get a good grade on the class.   Missing quizzes and exams (which are there to help you do better) really does not help you do better on the class in general.   If I give a midterm and final (and nothing else) in an introductory class, it is much more likely that a sizable percentage of the students will flunk one or the other and then consequently automatically flunk the class.

Good luck studying for the final exam.   There is a 5 day turn around for me to grade 150 x 10 to 12 page exams (7 to 10 pages of fill in the blank and word problem exams.   It also usually takes me about a solid 2 to 3 days to make up a 6 page exam.   It normally takes me about a week to grade a 5 to 6 page exam (but while teaching 15 contact hours a week).   I won't be teaching in those 5 days that I have to grade your exams but anything which you turn in late for me to grade, I really will not have time to grade.   Usually around final grade submission time, I go sleepless (meaning I stay up all night doing your grades - 24 hour a 24 hour day of no sleep) for a day or two.  Late submissions will be graded exactly as previously discussed in the syllabus (which you all signed at the beginning of the semester).   I am not refusing to accept late submission to be mean.   I am refusing to accept late submission because I am incapable of grading everything on time.   (In any case you don't want to spend the last few days before the final exams period doing lab reports and worksheets.   The points you earn on those is less than the number of points that you lose by not being prepared for your final exam in this and other classes.)     

posted by Dr. Hahn on 4/17/14 at 3:10 pm from her FMU office

"Mastering" online homework does not require that you turn anything into me.   It is just answering questions online.  (This posting is because someone thought that they needed to turn something hardcopy into me.)  All the online homework is about 30 minutes per chapter of 8 chapters  according to "Mastering" time estimates.   So altogether it should only take you 4 hours to do all of the homework from all semester long.  If you had spread it out over the semester, it would have come to about 30 minutes a week of online homework.   Of course if you have no idea what you are doing, it may take you longer to do the homework.

The grade posting is because I want to ensure that there are no errors in you grades in my excel spread sheet grade book.   If you gave me a 4 digit number and gave me permission, all of your grades are posted outside LSF 301 in the glass case.   Keep in mind that this semester there were 7 quizzes and 3 exams for 150 people in the lecture.  So that means that there are 1,500 individual grades posted for just the lecture alone.   For the lab there are an additional approximately 10 lab reports and 3 mini-finals  x 90 students.   So for the labs there are an additional 1,100  individual lab grades on the excel spreadsheet.   If you were me and there were that many individual grades of which to keep track, it would not be easy, correct.   So I posted every single grade.   If I was trying to cheat you out of grades, I would not post all of the grades.   If I wanted to have a "I like this student/I don't like this student" adjustment at the end of the semester, I would not post every single last grade where everyone can see it.   I only post grades because I am absolutely confident that there are no unfairness in grading and because I am also certain that even with the 2,600 individual posted grades that I am making no significant errors.   If you want your grades posted you can still submit the "permission to post grades" form and I will post your grades with everyone else's grades.

posted by Dr. Hahn on 4/18/14 at 9:10 am from her FMU office

**************************************

Because I changed the deadline for you to turn in the "Molecular Structure" worksheet from in the first 15 minutes of class to at the end of class, I will not give you the answer key in the first 15 minutes of class (obviously).   Since the work sheet says that you will lose 33% of the number of points for every 24 hour period past the deadline, that would mean that you will lose 33% of the points after 11:10 am on 4/17 Thursday until 4/18 Friday at 11:10 am (24 hours past deadline).   So if you turn in the "Molecular Structure" worksheet after 11:10 am on 4/21/14 (last day of classes), the "Molecular Structure" worksheet will be worth zero points.   (This strict deadline applies even if you have a valid excuse for missing the deadline.   After I post the answer key, it would simply be a copying exercise and I cannot think of a reason why you would be incapacitated for 3 days (5 days if you count the weekend days).

I will post the answer key at 11:10 am on 4/21/14.   If you turn in the worksheet after that time, the work sheet will be worth zero points so I will not grade it and will not even take into account that you turned in the work sheet.   posted by Dr. Hahn on 4/16/14 at 3 pm updated 4/17/14 (I emailed a slightly different deadline from Blackboard and only realized it when I looked at this post now at 2:30 pm 4/17/14)   I did say during the 4/15th class that the "Molecular Structure" would be due at the end of the 4/17 class.   posted by Dr. Hahn on 4/17 at 2:30 pm

**************************************  

Here are the DocumentCameraNotes4-15-14Tuesday.   Here is the answer key and blank form for QVII.   The turn in deadline for the "Molecular Structure" handout is 4/17/14 at the end of class period.   We will treat that as a worksheet.   I will post the answer key to the "Molecular Structure" on this website after the end of the 4/17/14 class.  

Final Deadline for Stuff:  (a)  final deadline turning in documentation for excuses (missing exams, missing quizzes, missing labs, attendance, etc.) 4/24/14 at 5 pm (b) final deadline for Blackboard Participation and "Mastering" online homework is 4/21/14 at 7 pm   - that is the last day of classes

Your Final Exam is for the 8:30-9:45 am Tuesday, Thursday class is from 8:30 am to 10:30 am.   for the 9:55 - 11:10 am Tuesday, Thursday class is from 3 to 5 pm.   The Final Exam will cover chapters 1 to chapter 10 (excluding chapter 6 which is normally not covered in General Chemistry I at FMU).   The final exam will be 1/3 multiple choice, 1/3 short answrs and 1/3 long answers.    The multiple choice on your final exam will be identical to the multiple choice questions on your own sections multiple choice questions on Exam I, Exam II and Exam III.   (I did accidentally give the 9:55 class's Exam I to the 8:30 class and visa versa so the 9:55 class's Exam I is what the 8:30 class will be studying for Exam I).   There will also be a few new multiple choice questions from chapter 8,9 and 10.   I will get rid of about 1/3 to 1/2 of the multiple choice questions from Exam I, II and III.   Then I will scramble the question number and answr choce letters to come up with the Multiple choice questions on the final exam.   SA and LA questions on the exams and quizzes will be similar to the SA and LA on the final exam in the same way as the quizzes were similar to the exams.   (no questions will be the same but the questions will be kind of similar)   

Do not miss the 4/17/14 Thusday class because I will go over what to study for the final exam as well as returning your graded Quiz VII and going over the "Molecular Structure" hand out.   posted by Dr. Hahn 4/15/12 at around 3pm from her FMU office

*********

Here are the DocumentCameraNotes4-10-14Thursday.   Here is the answer key and blank form for Exam III as promised.   We will have Quiz VII as originally on the syllabus since the beginning of the semester on 4/15 Tuesday when we next meet.   That quiz will cover all of chapter 8, and 9 that I have covered so far.   Note that I am skipping a lot of material in these chapters so don't spend a lot of time reading the details of chapter 8,9, and 10.   Otherwise, you will end up still reading the chapter the night before the Final Exam.    Just study the parts covered in class.   See document camera notes for what was covered in class.  

Note:   Don't miss those attendance points, those Black Board participation points and those "Mastering" homework points which has detailed rules listed in writing on the syllabus.  (If you can provide documentation for attendance missed days, you can turn those in.   Final deadline for turning in any documentation for excuses for missing anything is the date of the final exam.   If you submit it after the final exam, I will very likely just submit your grade without taking into account your documentation.   If your documentation is very compelling and airtight, and there is a difference in grade because of your documentation, I will submit a grade change but I am sure you would want to avoid this scenario. )  Those are the only "trying" points there are.   I will not look at your overall work and attitude at the end of the semester and adjust your grade despite the work that you have actually performed.  There is no "I like this student" points in this class.    For one thing I don't know all 150  students by name and I would not know enough about all 150 students in class to make a fair, unbiased judgment call on how much you tried in this class.

If you earn a 89.2 % grade at the end, I will not bump you up to an A.  The class average is around 80% so there are a lot of A grades without any such adjustment.   Also the "trying point" all together make up 4 percentage points in the final grade.   If you did none of the "trying points" and your average is 89.2% then you could have had a final average of 93.2 a solid A if you had just tried a little bit.   If you earned an 89.2% after you did all the "trying points", then your non trying points average would have been an 85.2% which is definitely nowhere near the A borderline.  

posted by Dr. Hahn at 11 am 4/11/14 from her FMU office

*************************************

Here are the DocumentCameraNotes4-8-14Tuesday.   Note that because of the 2 weeks of snow delays and because the semester usually gets hectic around this time of the year anyway that I am covering almost a chapter a lecture period (to 1.5 lecture period)  recently.  (instead of the normal a chapter every 2 to 3 lecture periods).  

My suggestion is that you not spend too much time reading the chapter in detail in the textbook because I am leaving out a lot of things.   We have to end General Chemistry I by covering chapter 10 so I am going to cover all the chapters but I am not going to cover every topic that I normally cover in order to get finished with the important stuff.  

I would pay attention to the lecture and then maybe look through the textbook and look at similar examples of worked problems.   You are always welcome to read the textbook but I just don't want you to spend all of your study time reading the textbook and then end up not having enough time to study the lecture notes and the quiz before the Final Exam.  

The Final Exam is going to have 3 new chapters (not covered on previous exams) on it.    The Final Exam will be cumulative (includes everything from chapter 1 to chapter 10).   It will also be 1/3 multiple choice, 1/3 short answers (fill in the blank) and 1/3 long answers (word problems).   The multiple choice part of the Final Exam (on material covered on Exam I, Exam II and Exam III) will be identical to the multiple choice questions from your own section's Exam I, II and III.   There will be new multiple choice questions on the new materials of course.   When I say "identical", I do not mean that the answer to question # 3 will be D as on Exam I.   I mean I will have to select about 1/3 to 1/2 of the multiple choice questions from the exams.   I will then scramble the question number and the answer choices so that you will have to understand how you derive the answer rather than memorizing question numbers and question letter answers.  Short Answer and Long Answer questions will be similar to but not identical to old exam questions.   The questions will be similar in the way that quizzes are similar to exams.   I will do my best to ask a different question but I am the same person and it is difficult to come up with really innovative ways to ask questions.  In any case if I ask "balance the following reaction" but I give a different reaction to balance, having seen the question and memorizing the question and answer really will not help you come up with the answer without understanding how to solve the question.    posted by Dr. Hahn at 4/9/14  Wednesday at 11 am from her FMU office

******************************************

Here are the DocumentCameraNotes4-3-14.   Sorry for the delay in getting these posted but I got caught up in making up the 3 lab mini-finals and grading your exams and just forgot.   I got all caught up in grading your lab reports.   I will have all of the lab reports (Thursday's sections lab reports too) for all my sections in the return folders on Tuesday.   I already returned the "Types of Reaction" and "Conductance" lab reports for my Tuesday and Wednesday's sections on Thursday.   Keeping in mind that I grade everything myself so I spent a good bit of time grading the lab reports and making up the Mini-Final III for the labs.   I did not make that much progress in grading your lecture exams.   posted by Dr. Hahn 4/6/14 at 9:40 pm from her Florence apartment

************************************************

The Boyle's Law Excel is in the bottom of the lecture under the General Chemistry I Lab for Spring 2014.   I am still grading your Exam III.   I finished the multiple choice part and made my way 1/16 thorough the Short Answer part so far.  So you will not be getting the graded Exam III on this coming Thursday morning.  At some point I am going to have to make up the last lab mini-final exam and grade the 90 lab reports (to return next week) so it is possible that I may not get your Exam III graded even by next Tuesday but I will try my very best to get them finished. .(In general though the more time I spend grading your exams, the more partial credit points you will get on your exams.)  posted by Dr. Hahn 4/2/14 at 4:30 pm

*****************************

Here are the DocumentCameraNotes3-27-14.   All of this material will be covered on Exam III.   This is the latter part of material from Chapter 7 which will be covered on Exam III.   I also answered some questions for some students and went over Quiz VI.   Once again let me point out that Exam III will be ~ 1/3 multiple choice, ~ 1/3 short answers and ~1/3 long answers just like all of the rest of our exams.   Some of you apparently thought that there was no class on Thursday.  No, there was a class and I was there.   I believe one of the other Chemistry professors was not on campus  but I was there on Thursday and Friday.   I went over what you should study for Exam III.    posted by Dr. Hahn on 3/29/14 at 9:20 am from her Florence apartment   

(Note that because of 2 weeks of snow delays that we are still almost 2 weeks behind schedule.   So Exam III from Fall 2013 does not match the material on Exam III from Spring 2014.   Do not study Exam III from Fall 2013 on things which I have not yet covered in the lecture.   So all of the stuff about electron configuration and VSEPRT and Lewis Dot structures are not on your Exam III Spring 2014.   Exams are also not cumulative.   None of the material on earlier exams will be on Exam III.   If I went over something again immediately before Exam III, then you are responsible for the material.   Some of that could have been discussed earlier (such as going from celsius to kelvin but I went over that again while going over the gas laws) but was then covered again after the material on Exam II.  

PS:   Note that my syllabus says in writing (and you students signed the syllabus agreement form) that if you miss 2 exams (of 3 exams) this semester with no documentation that the first missed exam will be replaced by the final exam grade.   If you miss a second exam this semester with no documentation, then that second missed exam will be worth zero points.   I will not just give you the one exam that you take as your exam grade.   You are all healthy, young people and if you are so sick that you miss 2 exams (out of 3 exams), then you would most likely have to be seeing a doctor.  If you bring me hard copy documentation such as a doctor's note, obituary in the newspaper, or a letter from another professor or coach stating that you were unable to come to the exam, then following my syllabus rules, I will average and plug in using the formula         

[(missing EIII/your own exam average) = (class average EIII/class average all exams)]  

I do not give the same exam at a later time to a select group of special people who whisper in my ear that they were unable to come to the exam because of either a documented or undocumented excuse.   Unlike some multiple choice exams where it is difficult to remember exactly what was on the exam, my long answers (worth 33 %) of the exam grade is very easy to remember so I cannot give the same exam at a later time.   It would be unfair.   A zero on one exam will drop your final letter grade down by at least one letter grade to as much as 2 letter grades.  (A becomes B or C, B becomes C or D, C becomes D or F etc)

When you come to the exam, please bring your own calculator.   You will not be allowed to use your cell phone as a calculator (because I post the answer keys online) and I know that you can look up my quizzes and even my lecture notes.   You are not allowed to share calculators during the exam.  You will be asked to put all of your notebooks, giant purses, bookbags etc. in the front of the room as always. I will also ask you to sign your exam sign sheet, show me ID and give your exam number as always.  I will be at the exam.   No I am not [insert your choice or ridiculous rumors you have heard here].   I will be there and I am making up your exam and no Exam III is not all multiple choice.

********************* 

Here is the answer key and blank form for QVI from the Spring 2014 semester.   To study for Exam III (Tuesday 4/1/14), please study QV and Q VI from the Spring 2014 semester.   I never give the exact same question on the exam which I gave on the quiz so you should try to understand the question rather than trying to memorize the way that the answer key answers a question.   After that you should look at the Fall 2013 Quiz specific questions mentioned below.   If you want additional practice, you should look at the examples which I went over in the lecture (as shown below in the Document Camera notes).   On 3/27 Thursday, I went over the quantum numbers (principal, angular momentum, magnetic and spin) and how given a certain principal quantum number, a set of allowed angular momentum quantum numbers can be derived. (etc.  - given angular momentum, which are allowed magnetic quantum numbers, etc).   So Exam III will start with the end part of Chapter 4 (starting with molecular, total ionic and net ionic equations), include all of chapter 5 and all of chapter 7.  

Only material explicitly discussed  in the lecture will be tested on Exam III.   So parts of chapter 5 and 7 (even if the book spent pages and pages discussing it) will not be covered on Exam III.   So if you have not already read chapter 7, I would not bother trying to read it in the next few days.   I would instead study QV and QVI (Spring 2014) and Q IV and Q V (specific questions listed below, from Fall 2013) and the lecture notes since Exam II.   Good luck and happy studying for Exam III and I hope you all do very well and make me proud of your hard work.   posted by Dr. Hahn at 12:40 pm 3/27/14 from her FMU office just before going to teach the 12:45 lab.   

Exam III will include material on Chapter 7 covered on the following quizzes from Fall 2013.   QIV (extra credit problem all forms) and QV (question #2 all forms) posted by Dr. Hahn at 8:10 am 3/27/14 from her FMU office right before going to teach the 8:30 am class.

Here is the DocumentCameraNotes3-11-14 and Document Camera Notes3-25-14 from the General Chemistry I Lecture.   Here is the periodic table with the s block, p block, etc labeled which you should be able to print for yourself.   I accidentally fogot to post 3/11 notes because that was a very hectic week.   I am still grading your quiz VI.   posted by Dr. Hahn on 3/26/14 at 10:40 am from her FMU office

Here is the Answer key and blank forms for Quiz V.   I am still grading that quiz.   posted by Dr. Hahn at 3/14/14 at 2:40 pm from her FMU office

Here is the Answer key and blank form for Exam II.   (average both sections = 82.2 %)  I am working on grading your lecture Quiz V and your lab mini-final II (for those in my lab sections).   posted by Dr. Hahn at 12:10 noon 3/14/14 Friday from her FMU office

Here is the DocumentCameraNotes3-13-14 from the General Chemistry I Lecture.   This will be posted for at least 2 business day weeks from today.   posted by Dr. Hahn at 11:20 am 3/14/14 Friday from her FMU office

Here is the DocumentCameraNotes3-6-14 from the General Chemistry I Lecture.   This will be posted for at least 2 weeks from today.   posted by Dr. Hahn at 11 am 3/8/14 from her Florence apartment

Exam II will be on 3/4/14 Tuesday at the normal class time. (unless we have another weather issue)  Exam II will be 1/3 multiple choice, 1/3 short answer and 1/3 long answers.  It isn't exactly 1/3 but usally a little less than 1/3 MC and more than 1/3 SA.   It will cover Chapter 3 and Chapter 4 (including precipitation reactions) but not including anything after the materail which I covered on 2/25/14.   On 2/27 we just went over material on Quiz III and Quiz IV.   You should study Quiz III and Quiz IV (all 4 forms of each quiz) and the examples in the notes covering chapter 3 and chapter 4.   Anything covered in the textbook not discussed in the lecture will not be covered on the exam.   We are a little bit behind schedule because of the 2 weeks of snow days but we will catch up by the end of the semester.   I am holding extra office hours on Monday from 2 to 5 pm if you need something answered before the exam.    (Please note that if you miss one exam with no documentation, it will be replaced by the final exam.  If you miss a second exam without any documentation (such as a note from the doctor), you will earn a zero on the 2nd exam.)    posted by Dr. Hahn on 3/3/14 at noon from her FMU office

************************ 

For my section of the lab, my Tuesday section has voted for the lab mini final exam to be given not next week but the following week.   So the Thursday class also voted for the mini- final to be given on two weeks from this week ( 3/11 T, 3/12W, and  3/13R).   Since 2 sections have voted for this week , we will do the lab minifinal the week of 3/11 T  to 3/13 R.   Keep in mind that this is the week before Spring Break.   You should be sure to take the mini final in one of the 3 days which I teach labs or you  may end up with a zero for one of the mini-final exams.   posted by Dr. Hahn on 2/25/14 at 4:40 pm from her FMU office after getting out of teaching the Tuesday lab.

Here is the DocCameraLectureNotes-2-25-14T.   I am going to unlink the lecture notes from before Exam I because you should hopefully have already looked at them.   posted by Dr. Hahn 2/25/14 from her FMU office at 5:15 pm

Here is the answer key and blank form for Quiz IV. (average both sections = 79.7%)  Please study Q III and Q IV in order to study for Exam II.   I should return Q IV next class period.   posted by Dr. Hahn on 2/25/14 at 4:45 pm from her FMU office

Here are DocCameraLectureNotes-2-11-14T,   DocCameraLectureNotes-2-18-14T, and DocCameraLectureNotes-2-20-14R.   I already posted them on Blackboard but since only about 40 % of the class has made their way to the BB website, I am posting them here again.     posted by Dr. Hahn at 10 am 2/24/14 from her FMU office   PS:   I hope that you guys are making your way to this website and the BB website.  

Here is the answer key and blank form for Quiz III. (average both sections = 80.0 %)  I have a scanner in my office (it is my personal scanner) and I have another scanner at home.   My scanner at home is not as user friendly as my office scanner so it took more time to scan at home.   posted by Dr. Hahn at 10:40 am from her Florence apartment while looking at the snow coming down at a pretty fast pace outside my window

Here is the answer key and blank form for Exam I. (average both sections = 83.1%)   The document camera notes will be posted on blackboard.   posted by Dr. Hahn at 7:45 pm from her Florence apartment

Here is the DocCameraLectureNotes-1-23-14R.   Subsequent lecture notes will be posted on your General Chemistry I Lecture notes Blackboard site where you can post your BB participation questions and answers.  Please let me know if you are having difficulty getting to the Blackboard.  I may also email you last minute updates to your FMU email address associated with your FMU Blackboard account.   I am grading your ~ 90 lab Density lab reports and have not yet started to make up your Exam I.   Of course I will definitely have your Exam I ready for you to take on 1/28/14 Tuesday.   Good luck studying for Exam I.   posted by Dr. Hahn at 10 am 1/24/14 

Here is the DocCameraLectureNotes-1-21-14T.   Here are DocCameraLectureNotes1-16-14R.    Here are the QI (average both sections = 94.7%, this was the confidence booster) and QII (average both sections = 90.4%)  key and blank forms as well.   I thought that I had already posted the QI key & lecture notes 1/16/14 earlier but apparently I had not.  (I had them both scanned in, but apparently forgot to post it to the web.)    As discussed in the lecture, on Thursday 1/23/14, we will go over QII and I will answer any questions you have on any material which you think will be on Exam I.   Exam I is on Tuesday 1/28/14.    An exam will occupy the entire class period.   Exam I will be ~ 1/3 multiple choice, ~1/3 short answers (fill in the blanks), and ~1/3 long answers (word problems).   There will be 2 long answer questions so each long answer question will be worth around 15 points.   For the long answer you must show work for full credit.   If you just give me the final correct number for the word problem without showing work, you will get almost no points.   On some of the short answer questions you may also be asked to show work.   On the multiple choice, you get no opportunity for partial credit for showing work and you will not need to show any work.   Exam I will cover all of chapter 1 and all of chapter 2.   Only material covered in class will be covered on the material in those chapters.   Good luck studying for Exam I.   posted by Dr. Hahn at 9:40 am 1/22/14 from her FMU office

Here is the periodic table showing elements which you do not need to memorize.   I did not label on the periodic table that Group VIA are chalcogens.   It is better to memorize the element name / symbols now rather than the night before the exam.   That way you will earn points on the quiz and you will learn much better than cramming the night before Exam I.   I am still working on the DocCameraNotes for 1/16 and the Quiz I keys.   posted by Dr. Hahn 1/17/14 at 11 am from her FMU office.

Here are the DocCameraLectureNotes1-14-14T.   I am still grading your QI-Worksheet.   posted by Dr. Hahn 1/15/14 at 9:40 am from her FMU office.

Here are the DocCameraLectureNotes1-9-14.   I will later start to post these on Blackboard but because I know some of you (who registered late) may not have found yourself to BB, I am posting them here for a while until I know that you have found your way to BB.   Remember we are having a Quiz on 1/14 T (will be worksheet and not a strict quiz because some of you registered late)    We will also be starting General Chemistry I Lab on 1/14 T as well.   Please come with safety goggles and lab book.   We are only working with water so you are unlikely to hurt yourself even if you do not have safety goggles but I would rather than you come with goggles if at all possible.    posted by Dr. Hahn 1/9/14  at 12:30 noon from her FMU office

*****************************

Here is the syllabus for the General Chemistry I Lecture for Spring 2014 class.   I corrected the typo where I said that you need to have a composition type notebook in the lab by deleting it.  (It should have been the rip out page notebook at the bookstore.  In any case you should wait until you see your lab teachers to decide what you actually need.)   posted by Dr. Hahn at 1:10 pm 1/7/14 from her FMU office  

***********************************

Spring 2014 General Chemistry Lab

For the last Mini-Final (Mini III):   I will not include anything from the "Group & Periodic Relationships" lab.   This is the lab which got squeezed in with the "Gas Laws" lab because of "Snow II".   We are doing that lab as a handout without doing the actual experiment so I will just leave that entire lab out from  Mini-III.   As in prior Mini-Finals, you should not memorize the reactions or any equations used in the labs for the last Mini-Final.   If you need chemical reactions or equation (as in % yield equation), it will be provided on the "Mini Final".   You may be asked something about a reaction provided on the exam or to use the equations.   You will also need to be able to give me the dissociation equation for simple, straight forward dissociation equations.   This Mini-Final will be similar to the other Mini-Finals in content, format and length.   It will cover (1) Carbonate to Chloride  (2) Conductance   (3) Types of Chemical Equations (4) Gas Laws     posted by Dr. Hahn on 4/4/14 at 9:20 am from her FMU office

*******************************************************

Here is the Boyle's Law Excel Spreadsheet.    To change the spread sheet to the spread sheet for your data, input your data into the very last chart next to the plot.  You should be able to modify your plot just as you did for the density excel spread sheet.   (see below). 

If you want to do the plot yourself, just input your chart from your page 2  Chart B into a spread sheet exactly as shown on your data sheet page 2.   Then select all 3 columns and all 9 rows.   Then do insert - scatter - choose the drawing that shows lines with little dots on them.  This will give you a chart.   Among "chart tools" you can choose chart title , axis title to pretty up your plot.   To print just the chart, click on the chart and print.   To print your spreadsheet and chart, click anywhere on the chart and both will print out.  

   posted by Dr. Hahn on 4/2/14 at 4:20 pm from her FMU office

*********************************

Here is the Density Excel Spread sheet. (for Burundum) in Part II of the density lab.   You may change the chart numbers to generate the density plot.  I used the data on page 29 of your labbook which shows a plot by LoggerPro.    To do a similar plot for your data, write your data by replacing my data with your data.   The plot should change to your plot.    You may have to adjust the axis a little bit and change the title.

Or you can input your data with volume on left and mass on right.   Select all of your data and then go to insert and choose X,Y scatter plot with a line with dots drawing.   Go to Chart Tools and choose Layout.   You can pretty up your chart with Chart Title, Axis Title, and  Axes.   To get the line equation, select Trendline and More Options.   Select Display Equation on chart.   You will get an equation of y = m x + b where m = slope = density.  

 posted by Dr. Hahn 1/14/13 at 11:30 from her FMU office & modified by Dr. Hahn at 10:40 pm 1/14/14 from her Florence Apartment

***************************************************

Fall 2013    General Chemistry I Lec

ture (sections 0068 MWF 9:30 am to 10:20 am) & (3101 MWF 10:30 am) (below until you get to the ## and large font)

Here is the Final Exam from the Fall 2013 semester.   Posted by Dr. Hahn 1/15/14 at 10:05 am from her FMU office

*************************************************************************************

In my sections of the General Chemistry Lab:   Your grades are not posted on Blackboard.   Some of you asked why your grades are not posted on blackboard.   Some of you stated that some grades were posted for my sections of the lab on Blackboard.   Some of you asked how to view your grades for the labs on Blackboard.   Someone erroneously posted some grades in his sections.   My sections are not effected.   Your grades will be posted outside of LSF 301 inside the glass case.   I am still grading (because I am still making up my lecture final exam).   There is no change in the way that your lab grades will be calculated.   Your lab grade will be calculated exactly as stated on my syllabus.   posted by Dr. Hahn    12/2/13 at 3:30 pm from her FMU office

General Chemistry Lecture Final Exam:   I forgot to state (although it is obvious because we have been doing this all semester long) that when you take the final, the exam will be given exactly as it has been given all semester long.   (a) all your bookbags and giant purses in the front of the room (b) only your calculator,  writing utensils and ID at your desk.  (I am sorry to say that I only still vaguely recognize the majority of the students in class.  I am just not that good with matching faces with names.)  I will come around and individually get signatures and check IDs during the final as I have done all semester long.  posted by Dr. Hahn  12/3/13 at 10:30 am from her FMU office

The Thanksgiving Brownies were from my mother (Well, they are from me but my mother baked them.  I just usually buy cookies or doughnut holes.).    The little Halloween candies and Christmas chocolates are from me.   My parents and I put the Christmas chocolates in the little bundles over Thanksgiving break.   (I have done this for years before I ever got hired at FMU -  giving out snacks not doing it with my parents because this is the first time that I have had a faculty position near my parents. )  It is sort of part of my personality.   Neither were funded by the Chemistry Department.   They were not packaged by the chemistry club or anything like that (So no,  there is not some sort of hidden meaning in the little snacks).  (just like no one is helping me grade your exams which is why it takes so long for me to grade them)   I have read educational studies which show that students are more receptive to instruction after cookies and stuff.   I started doing the pre - Thanksgiving snacks as a small reward for being such good students who actually showed up on the last day before the break.   The Christmas candy is sort of a  I enjoyed teaching you this semester thing and to provide the last little burst of energy for doing the final exam.     I like going to the stores before Halloween and Christmas and finding unusual little candies to give to my students.   I don't give out Halloween candy at my apartment (I don't like opening the door to people that I don't know at Halloween with all the incidents that you hear about in the news) so I give out Halloween candy to my students instead. 

**********************************************************************

There is no extra make up exam  being given on "READING DAY" in any of my sections of either the Lecture or Lab of General Chemistry.    Reading Day is supposed to be the day that you are supposed to study for your final exams without having any classes.   It is the day that I will be making up your lecture classe's 1/3 multiple choice, 1/3 short answer and 1/3 long answer final exam which will be 2 x as long as the regular exam.  

The Lab Final Exams for my 3 sections of the lab will be given on 11/20Wednesday 1:30 pm, 11/22 Friday 12:30 pm and 11/25 Monday 1:30 pm.   With prior permission from me you may attend any of these 3 day final exams.  You need to get prior permission because if you try to take the final exam in a different section and I run out of exams, then students from the wrong section of the lab will not be allowed to take the lab final exam that day.   If you miss these 3 final exam dates and say nothing to me and have no excuse of any kind, you will earn a zero on 25% of your lab grade.   There is actually a university wide rule which states that you earn a grade of F in a class where you do not take the final exam.   Just because some guy announces in class that they are not able to take the lab final exam does not excuse you from the lab final exam.   In fact that guy is following my rules for taking the lab final exam in one of my sections of General Chemistry Lab.   His implication of refusing to take the lab final exam (and then taking the lab final exam himself) will not hurt him in any way (because he is taking the lab final exam following my normal rules).  If you refuse to take the final exam (for no reason), it could however result in you getting a D or F in General Chemistry because you get a zero on 25% of the lab class grade if you in fact do not take the lab final exam  with no documented reason.   (This is like a sheep leader telling all the other sheep that it is wonderful to jump off the cliff and then watching in the sidelines as the stupid sheep jump off the cliff while the evil sheep leader watches from the sidelines and does not jump off the cliff himself.)

The Lecture Final Exams for my 2 sections of the lecture will be given on:   for the 10:30 am MWF class on 12/4Wednesday between 3 pm and 5 pm     for the 9:30 am MWF class on 12/6Friday at 8:30 to 10:30 am both in LSF 301 the same lecture room.   With prior permission from me, you may be allowed to take the Lecture Final Exam in the other section's final exam time.   If you come to the wrong Lecture Final Exam without prior permission and I run out of exams, the students from the wrong section will not be able to take the final exam.  

If you miss the final exam in either my lecture or the lab, I will not be giving you the identical final exam which I gave the rest of the class at the normal final exam time.  

I will have to make up a new makeup final exam which will be very different from the final that the classes took because I will post the final exam as soon as all of my sections take their final exam.  The makeup final exam will have no curve of any kind because we do not have the ~ 120 students taking the lecture exam and the ~90 students taking the lab final exam and you will be taking the makeup final exam by yourself.     It takes me around 2 days to make up an exam and because of the deadline for me to submit grades, I will not have time to make up a new final exam before the grading deadline.   Therefore I will submit an incomplete grade for you if you miss the final exam in either my lecture or the lab.   Then at a time convenient to me, I will give a makeup final.   Please note that if you miss the final exam (in either the lecture or the lab) and say nothing and have no documented excuse, I will just give you a zero for your final exam grade and submit whatever grade you earn.   There is a university wide rule which states that students who do not take a final exam earn an F for the class.   posted by Dr. Hahn at 9:13 am 11/15/13 from her FMU office

*******************************************************************************

Question:   Is there a facebook page which Dr. Hahn keeps under an alternate name ?   NO.   Last time I looked at my facebook page was maybe half a year ago until I looked at it yesterday because of a raffle at my apartment.   There was a friend request from someone with almost my exact name (different by one letter).   The profile picture however was my picture from my website but where my clothes and my old car color were green or blue.  (The original colors were pink and red.)   There were also a couple of pictures from my facebook page with the text changed slightly so that at first glance I thought it was my own statement.     Everything was modified slightly from my original picture and text.   The change was very well done.   Someone spent a lot of time setting up this alternate facebook page.   The only thing was that it said that my PHD was in Physical Chemistry.  There was also a picture of a T-shirt which said "I love Physical Chemistry" and it said that I hung out with my boyfriend in front of the Physical Chemistry office.   Physical Chemistry is the one field that I do not claim to have even a graduate school minor and there is no Physical Chemistry office at FMU.   I would also  not be eating lunch in front of someone else's office.    I do not eat lunch with my boyfriend because I do not have one.   (This statement of no boyfriend not given in an attempt to get  a boyfriend but because people like to say about women that a woman does not need a job - we just have to give a job to the boyfriend or  She is leaving to follow her boyfriend out of state so she will quit her job any day now, etc.   Statements that no one would say about a man.  as in:    Dr. X will be quitting his job and moving soon to be near his girlfriend who lives 5 states away.)   Very creepy.    Someone very creepy had a lot of time on their hands and had some sort of weird agenda which I cannot fathom.

Question:  Will I (Dr. Hahn) disappear mid semester (for some reason) so that the rest of the semester,   you have someone else teaching all of my classes ?  (or the real question is:   Are we going to have the same type of exams, quizzes, lab reports, lab final lecture final, syllabus points as originally promised by Dr. Hahn at the beginning of the semester?)   NO, I will not be disappearing mid semester.   (real answer to real question:   Everything will go as promised in the original syllabus.   Trust me.    It will be OK.)    I know of absolutely no reason that I would disappear mid semester.   There is a regional ACS meeting in Atlanta towards the end of November around the time of the General Chemistry I Lecture.   If I went to that I would have to have someone take over almost the entire week before and during my scheduled Exam III.   Shortly after Exam III, there are the lab finals followed by Thanksgiving and the end of the semester lecture Final Exams.    I looked at the schedule and I take my students seriously enough so that I would rather look after my General Chemistry students than network with my regional Chemistry colleagues.   posted 10/30/13 W at 8:35 am from her FMU office.

*******************************

Students in my (Dr. Hahn's) section of General Chemistry I Lecture  9:30 am - 10:20 am MWF and 10:30 am - 11:20 am MWF which normally meets in LSF 301:    You do not need to go to the classroom LSF 301 at all on Monday 9/9/13.  We will not meet in person on Monday 9/9/13.    You will instead view the 5 ten minute videos listed below (also available on Youtube at  https://www.youtube.com/user/JulietHahnPhD )  in place of the lecture.   You will then log into blackboard and answer one multiple choice question which you should be able to answer after viewing the videos.   The multiple choice question will count as attendance for the lecture class of Monday 9/9/13.   You may view the video at any time on your own.   The one point multiple choice question has a deadline of 9/30/13 at 5 pm.   updated by Dr. Juliet Hahn  on     9/8/13 at 8:30 am from the Columbia Airport   (If you do go to LSF 301 at 9:30 am and 10:30 am, Mr. Ragsdale will tell you to go to my website.)

For the 9/11/13 Wednesday and 9/13/13 Friday class, we will meet normally in LSF 301 and there will be no video lecture.   This is the only time this semester when we will do this online video lecture.

********

Sorry for the delay but I had a lot of lab finals to make up (3 different lab finals) & then had to grade your Exam III and make up your Quiz VII.  I also had to grade those nearly 100 x 4 page lab reports from Periodic Relationships lab.  Believe me, I was not goofing off.  

OK.   Here is your answer key and blank form of Exam III.    Here is the answer key and blank form for Quiz VII.  

To study for the Final Exam:   Please study your Exam I, Exam II and Exam III plus Quiz VII.   If you have time also study your old quizzes.   You may want to take a look at the Final Exam from Fall 2012.   (We were a little bit further along when I gave that class the final exam so it covers a little bit more material than the Fall 2013 classe's final exam.)  Keep in mind that the Final Exam SA and LA will not be the same questions as on the old exams.   The questions on the final will be similar to but not the same.  (I like to take material from for example EI and combine it with something from after EIII and come up with a new question.)    In the way that your QV and QVI helped you study for Exam III.   The multiple choice questions on Exam I, Exam II, and Exam III will be identical to the MC from EI, EII and EIII (for your section's Exam).    Of course I will only be able to put 1/3 to 1/2 of your MC from old exams on the final.   All MC questions will be scrambled among EI, EII, EIII and new material since EIII.   The scrambling will be for both question number and question choice.   The final will be slightly less that 2 times as long as a regular exam.   Good luck studying for the final exam and I hope that you make me proud by doing an excellent job on the final.   posted by Dr. Hahn on 11/25/13 at 4:43 pm from her FMU office

***************

Here is the answer key and blank form for QVI.   To study for Exam III, you should make sure that you understand the material on Quiz V and Quiz VI.  Understanding is not the same as memorizing the answer.   I will often modify the question so that you can only answer the question if you understand the question.   Exam III starts with chapter 5 Stoichiometry of Gases and covers all of chapter 7 (only parts covered in lecture), all of chapter 8 and about half to 1/3 of chapter 9.   (You are only responsible for parts of the text book which were covered in the lecture on all exams and quizzes.)  You should be able to recognize the correct Lewis Dot structures, be able to come up with the correct number of valence electrons but not necessarily be able to draw a Lewis Dot structure from scratch for Exam III.  Exam III will be about 1/3 multiple choice, 1/3 short answers and 1/3 long answers.   We will have a review (meaning you will be able to ask any questions about anything) for exam III on 11/13 Wednesday during class.    Note that all exam and quiz dates are on the syllabus (page 6).   I have not changed either the number of quizzes and exams or the date of the quizzes and exams, nor the format of the quizzes and exams since the beginning of the semester.   If you hear otherwise, it is probably because someone is confused between my sections of General Chemistry and some other section of General Chemistry.   posted by Dr. Hahn on 11/11/13 at 12:45 noon from her FMU office

*********

Here is the answer key and blank form for Exam II.     Here is the answer key and blank form for QV.   Sorry for the delay but that exam grading, quiz making up and grading took all sorts of time so that I have not had a chance to breathe until now.   Once again for Exam III, you should study Q V and Q VI and the Fall 2012 parts of Exam III and Exam II.   The material covered on the exams and quizzes do not necessarily match up because my quiz and exam dates are prearranged and my quiz and exam material covers material which I have covered in sufficient time for you to study it for the exams and quizzes.   The quizzes also cover material covered the day of the quiz (as extra credit).   So if you look at quizzes and exams from Fall 2012, if you see material which I have not covered yet in this semester's classes, ignore it while studying for your Exam III.   Please note that between Quiz VI and Exam III (11/13/13 Wednesday) will be our review day.   You should come with questions and unless I have to finish up something before Exam III, I will try my best to wrap up material to be covered on Exam III by Friday's class (11/8/13).   I will not tell you what will be on the Exam during the review day but I will answer any questions you have on specific things which may show up on the exam.   Note:   That if you understand the material on QV and QVI, I almost guarantee at least a B on Exam III.    Note:   I said understand.   I did not say memorize the questions which appeared on Q V & QVI.   

I have also emailed you that your Mastering Chapter 8 has been posted and your BB Discussions (discussion 1, 2, 3 and 4) deadline has been extended to 11/20/13.    Good luck studying for Exam III.   It is a good idea to study for Gen Chem way in advance of the actual exam date.   posted by Dr. Hahn on 11/5/13 at 10:50 am from her FMU office

**********

Here is the answer key and blank form for Quiz IV.  I will have Quiz IV graded and will return it to you on Friday.   Please study all forms of Quiz IV before Exam II (EII  Monday 10/21/13).   Friday 10/18/13 is going to be "Ask anything you want about material before Exam II" day.   Please come with questions.   I am not going to review all material which will be on Exam II.   Instead I am going to ask that you come with specific questions.   You could also ask something like "I don't understand how you get oxidation states can you go over one of those" for example.   posted by Dr. Hahn from her FMU office at 10:30 am 10/17/13 Thursday

**********************************

Here is the answer key and blank form for Quiz III.   Please study all forms of Quiz III before Exam II.   The way that you should study Quiz III is not to just glance at the answer and say to yourself, OK, I know how to do this.   The way that you should try to study Quiz III is to (a) look at the answer key and make sure that you understand how to answer the questions (b)  wait until the answers aren't fresh in your mind (c) try to do Quiz III as if you are taking an exam using the blank form of the quiz  (with limited time and while not looking at your notes or book) (d) check your answers against the answers on the Quiz III answer key.   Please note the idea is to understand the questions on Quiz III.   The idea is not to try to memorize the answers to Quiz III.   On Exam II, I will have questions which are similar to but not the same as the questions on Quiz III.   For instance, I can only ask for a balanced chemical reaction so many ways.   However if I give you a different reaction on Exam II which I did not give you on Quiz III, memorizing the balanced chemical equation on Quiz III will not help you at all on answering essentially the same worded question on Exam II.   However knowing how you balance a chemical equation and getting a little bit of practice under exam pressure will help you do very good work on Exam II.   (You should try to do this with both Quiz III and Quiz IV before Exam II)   posted by Dr. Hahn on 10/3/13 at 3:20 pm from her LSF 303H FMU office

**************

Here is the answer key and blank form for Exam I.  You would want to study it for the final exam.   I'm still grading and I may or may not have your exams to return on Monday.  I am continuing to grade your exams by myself.  I'm also grading your lab reports as well.   Combined (exams and lab reports) it is about half a foot high (my explanation for why it takes the amount of time to grade your stuff, not my lobbying for assistance from others such as student workers).  posted by Dr. Hahn at 3:30 pm 9/21/13 Saturday from her parent's home at 312 Lancer Dr. / Columbia, SC

*************************  

I am in my office still grading Exam I.   I graded some over at "The Grille" around lunchtime. (If you heard rumors that my exams were to be graded by a bunch of students for instance, the proof that this rumor is not true is that I was grading your exams all by myself around lunchtime as I was all of the rest of the time that I was grading your exams.)    I need regular infusion of coffee to grade your 6 page x ~ 120 student exam (2 pages multiple choice, remainder fill in the blank and word problems).    I am not having the help of any other faculty, staff or students in grading the exams.   I am grading the exams entirely by myself.   I am not trying to get someone to help me grade the exams.   I am certainly not going to ask some student who is mean to me (I don't know why.) or who follows me around or who gives me dirty looks (I don't know why) to help me grade my exams. 

I take exam grading very seriously.   I am not going to turn the exam grading over to anyone just because I am intimidated by getting dirty looks.    I stand firmly behind the integrity of my grading which is why I will provide you, my students, a grading sheet which lists the common mistakes that you made and  how many points I took off for those mistakes.   I am pretty sure that if I ask students who maybe took General Chemistry last year or who may be a senior but flunked out of some Chemistry classes to help me grade my exams, I cannot stand behind the integrity of my grading.   There also needs to be some separation between the person grading the exams and the students in the class.   I can't have room mates (good buddies) grading their room mate's (good buddie's) exams for instance.    posted by Dr. Hahn at 2:30 pm 9/19/13 from her FMU office

*************************************

Here is the answer key and blank form for Quiz II.   Please study Quiz II before Exam I.  On Monday 9/16/13 we will have a review for Exam I material.  You should come with questions to this class.    I will also try to finish up the remainder of the naming examples but I am not holding you responsible for memorizing the number prefixes or the polyatomic ions for this exam because of the short amount of time for you to memorize before the exam.   You still have to know the naming rules for Exam I as illustrated by the examples.   (If I do not complete the naming examples on Monday, it will not be on Exam I.)  posted by Dr. Hahn on 9/13/13 at 4 pm from her Francis Marion office

**********************************

Here is the answer key and blank form for Quiz I.   Please study Quiz I in  order to study for Exam I.   To study, you should look at the answers shown for all the forms of Quiz I to make sure that you understand.  If you do not understand, you need to either ask someone or try to understand by lookiing over your notes and textbook.   Then you should do the blank form of the quiz without looking at the answer key as if you were taking an exam.   You should then check yourself against the answer to see if you learned the concepts.   Chemistry is one of those classes where just understanding the concepts is not enough. You need to actually have some experience doing the problems so that if you get a slightly different problem on the exam, you will be able to answer the question.   Quiz II will not explicitly contain any of the material from Quiz I.   However since Chemistry is one of those classes where an earlier concept is needed in order to understand a later concept, if you completely forget Quiz I, you may have difficulty with Quiz II.    posted by Dr. Hahn on 9/5/13 at 3:20 pm from her Francis Marion office

********************

Here is the Periodic Table which shows what you should memorize before Quiz II about the periodic table.   I have not finished going over some of this material yet.   posted by Dr. Hahn at 9/5/13 10:10 am from her Francis Marion University office

******************************************************

Here is a the Syllabus for my sections of the General Chemistry I Lecture.  Please note that when I handed out the hardcopy of the syllabus, there was a typo in the total number of points.   The total number of points possible is 820 not 835.  

FYI, I do not run the teaching labs in the Chemistry Department at FMU.   Mr. Ragsdale runs the teaching labs with his many undergraduate assistants.   I had nothing to do with the lab schedule.    I am just one of the many people following the lab schedule set by Mr. Ragsdale.   I am also not one of his undergraduate assistants.   I only teach my 3 sections of the labs in addition to teaching my ~ 110 Gen Chem I lecture students.   posted by Dr. Hahn 8/22/13

Funny story though.   It turns out that at one of my former faculty positions people would increase enrollment by spreading a rumor that I would be teaching a particular class.  I was very well aware of it and I was very sorry for the students who fell for the ruse.   No matter how much I told students the truth, they just would not believe me.

******************************************************

For discussion points, set up a connection to BlackBoard.    View ConnectingToBlackboard (from campus IT).  posted by Dr. Hahn 8/20/13

############################################################################## End Gen Chem I Fall 2013 Lecture

Fall 2013 General Chemistry I Lab (section 2819 M 1:30 - 4:20 pm) (section 0089 W 1:30 to 4:20 pm) (section 3488  F 12:30 - 3:30 pm) (below)

Here is the excel spreadsheet for the plot for Boyle's Law for Part I of the Gases Lab.   ( I made up this data. )  You can input your data (volume, pressure and 1/pressure with volume in mL and pressure in atm)  into the bottom chart and then the plot will update to your data plot.  You may turn in this plot for your Boyle's Law plot.     (For some reason the top chart's spreadsheet calculation will not save with the formula so you will have to either manually calculate or put in the formula yourself.)  (The axis may be a little off but it should have all of the plot.)   Alternatively, you can follow the directions from p. 66 of your lab book.    posted by Dr. Hahn on 10/31/13 11:40 pm from her Florence apartment

Here is the downloadable lab report form for the Chemical and Physical Changes Lab.

Here is the General Chemistry I Lab syllabus for my sections for Fall 2013.

Here is an excel spreadsheet for the plot for Density of Burundum in Part II of the density lab.   I used the data on page 29 of your labbook which shows a plot by LoggerPro.    To do a similar plot for your data, write your data by replacing my data with your data.   The plot should change to your plot.    You may have to adjust the axis a little bit and change the title.  (FYI:  I did not post this because I want a job writing lab texts.   I am plenty busy just teaching my classes.  I only posted this so that some of you are not running around like a chicken without a head at the time that the plot is due and forced to make a deal with the devil just so that you can plot your data.)

Or you can input your data with volume on left and mass on right.   Select all of your data and then go to insert and choose X,Y scatter plot with a line with dots drawing.   Go to Chart Tools and choose Layout.   You can pretty up your chart with Chart Title, Axis Title, and  Axes.   To get the line equation, select Trendline and More Options.   Select Display Equation on chart.   You will get an equation of y = m x + b where m = slope = density.  

posted by Dr. Hahn from her Florence Apartment 8/26/13 Monday at 10:50 pm

################################################################################################# End Gen Chem I Lab Fall 2013

Summer I 2013

General Chemistry II Lecture & some Lab Stuff (below)

Here is the answer key and blank form for the Final Exam.   I submitted your final grades on 7/2/13 at around 10 am.   I posted your final grades including your grades on the "Mastering" outside of LSF 108 & also outside of CEMC 104A.   I was very proud of the hard work that all of you put in all summer long and the final grade that you guys earned.   I know it wasn't easy to study for an exam or quiz every other day all semester long and I know that you guys worked really hard all summer long.   As discussed earlier, I do not curve a final grade of  even of 89.2  to an A.   If you had a grade of 89.5, I will observe the normal rounding up rules and give a grade of A.   Since your attendance extra credit is worth 15 of 800 points or 1.9 points, every student had the opportunity to pull themselves up to the next grade if they were within 2 points of the next higher grade.    I am really tired because it wasn't easy for me either making up and grading a quiz or exam every other day for Summer I.   After the end of the semester, I couldn't bring myself to even look at the final exam let along write up the points for common mistakes answer key until now.   Have a good rest of the summer.   posted by Dr. Hahn at 3 pm 7/6/13 from 312 Lancer Dr. / Columbia, SC

***********************

Here is your answer key and blank form for Exam III.   I will hand out a copy of the answer key in class as I return the graded exams because I barely managed to finish grading it this morning.   I did not give a lot of partial credit because of the short turn around.   I actually did nothing but makeup your "dry lab/review" handout and grade this exam since I left class yesterday.   I did sleep and I did eat my frozen pizza but really I did nothing but grade these.   I will post the answer key for the "DryLab/Review" right here as soon as we do it in class today.   posted by Dr. Hahn at 9:24 am 6/27/13 from her CEMC 104A office immediately before heading over to the lecture room. 

Key for "DryLab/Review" is posted.   Dr. Hahn at 11:55 am 6/27/13 from her CEMC 104A office

****************

I am walking over from the CEMC building all the way over to the LSF building which is all the way across campus and I usually never see any of my former students.   For one thing it is summer so there are not that many students on campus.   For another usually my former students are found around the LSF building and the nursing building which are both all the way across the campus.   Strangely enough I have seen my former students about 6 times while I walk from the CEMC building to the LSF buildng.     Hum.   I know that these stray former students are not meeting with me.   I just see them out in the hallway.   

I also know that these stray students are not helping me grade.   I just happen to be walking in the same direction as these stray former students I wasn't even talking to these stray former students.    I have never had any student help in grading anything ever at FMU.   I have never had any students even add up points on my exams.   No student has ever even put their hands on my exams.    Even when I am grading 100 x 20 page exams with 15 pages of fill in the blank and word problems, I grade the exams entirely by myself with absolutely no student help.   

My students can rest assured that I am not having students one year ahead of them grading an exam with partial credit word problems.   That is not going to happen because I know that if I did have students who took the class last semester grade such an exam, it would be a total disaster.    I don't even like the idea of students who are friends with other students grading their friends exams.   That would be a total disaster.    So I will probably have to pull an all nighter to grade these exams but I will be grading every single last one of your exams and final exams.   posted by Dr. Hahn at 4:12 pm 6/26 Wednesday

*****************  

"Mastering Deadline"   I have reset the "Mastering Deadline" to 6/30 Sunday at 8 pm.   That way I will have everything that I need from you by the end of your Final Exam on 7/1.    Note:   If you are going to request an excused absence for anything, you will have to bring it to me by the end of the Final Exam 7/1.   That is the final deadline.   posted by Dr. Hahn on 6/26/13 at 3 pm

Latest update:   Instead of doing the dry lab on 6/26 Wednesday at 1 pm,  we will do it on 6/27 Thursday.   So from 1 pm until 3 pm on 6/26 Wednesday, we will just continue our lecture.   That way our Thursday class 6/27 will be a 2 hour review session for the Lecture final exam covering all topics which will be covered on our cumulative final exam.   I will have the "dry lab" review handout during the Thursday class and at the end of the Thursday class period, you will turn in the handout and I will give you the answer key to the review handout.   You will be able to do the "dry lab" review handout open book and open notes.   The review handout which you will get on Thursday will count as one of the labs for the lab grade and not as a lecture examination grade.   I will also post the blank form and answer key to the dry lab on this website so that you can study from the handout.   That way all material which will be covered on the final exam will have a quiz or handout from which you can study the material before the final exam.   

Exam III will still be given in the first hour of our 6/26 Wednesday class.   Your Qualitative Analysis lab will still be due by 6/27 Thursday.

My syllabus states that you get to drop one lowest grade lab grade, and 2 lowest grade quizzes.   The dropped quiz and lab can be for a quiz or lab which you did not attend without documentation.   If you can provide documentation for missing a lab or for missing a quiz, then I will average in all of your own quizzes or lab grades and then take into account the difficulty of your missing quiz or missing lab and come up with a "substitute quiz or lab grade".    You will then get to drop your lowest lab grade and your lowest 2 quiz grades.

If you miss one exam with no documentation, I will replace the missing exam with your final exam grade.   If you miss an exam with documentation (doctor's note, etc), then I will average and plug in.    I will plug in with the averaged grade or your final exam grade which ever is a better grade.   I will not replace an exam which you attended and took with the final exam grade.   There is no replacement of your regular exams with any other grade.   Your exam grade sticks because this is the grade that you earned.     All of these policies are from the syllabus which you have had since the beginning of the semester.   I am not making up new rules as we go along.

posted by Dr. Hahn at 1 pm 6/25/13 Tuesday from her CEMC 104A temporary office

PS:   I am not trying nor do I want to get a job setting up labs, writing labs or acting as a tutor because I already have a job as a professor.   There are other people who do that and I am plenty busy just teaching the lectures and labs without having to do anything else and no one has said anything to me about anything else.   If someone says that I have been discussing anything like this with them they are making up a lie.    I am also not teaching in Summer II.   If someone says that I will be teaching a Summer II class which has someone else listed as the professor, they are making up a lie.   I am also not going to be doing research under another professor at FMU and if someone says that I will be doing that, they are also making up a lie.

*******

Here is your answer key and blank form for your Quiz VI.   Just to make sure that you get the key before your Exam III, I will print out the answer key and bring it to the next class.   Remember your Exam III consists of Chapter 14, 15 and all of Chapter 16.   We will do Exam III in the first hour of the 6/26 Wednesday class.    Don't forget to bring your lecture notes to the "dry lab" [dry lab put in at Dr. Williams request because there were too few labs in my syllabus - bringing our total number of labs this semester to 9 labs (Normality is 2 labs because it took 2 lab periods to complete)] review of General Chemistry II Lecture & open book handout.   I have to collect this dry lab handout at the end of the lab period because if I give you until 7/2 Tuesday (normal deadline), I will be grading your lab report after I have already given your final exam leaving me too little time to grade your final exam.   This gives us 5 hours left in the lecture this semester.   Our very last hour of the lecture will be for review.   So then we can complete Chapter 17 hopefully by the end of 6/25 Tuesday and then we will complete Chapter 24 in the second hour of Wednesday and the first hour of 6/27 Thursday.  I may put some of chapter 17 & chapter 24 material on the "dry lab" handout during the 6/26 Wednesday lab time.   Good luck studying for Exam III.  

Final Exam will be about 2 times as long as a regular exam.     My guess (before I know how much material I will complete before the final exam.):   3 long answer questions (normal exam has 2 long answer questions),   between 20 to 24 multiple choice questions (normal exam has 12 multiple choice questions) and nearly 2 times as many short answer questions as a normal exam.   The material covered will be evenly distributed between all chapters.   I am shooting for this final exam to take you an hour and a half to complete.

posted by Dr. Hahn on 6/24/13 at 4:00 pm from her CEMC 104A (opposite side to the Media Center hallway)  temporary office 

********************

Here is another example of the titration.   This is what I did to calculate your expected data for the pH meter titration experiment.   I am only showing one example of before equivalence point and one example for after equivalence point.   posted by Dr. Hahn on 6/23/13 at 10:44 pm  from her new Bentree Lane Florence, SC apartment (I meant to post this earlier but I had to take care of more move related stuff when I went home to my parent's house in Columbia.)

How to guess-timate your final grade:

This guess for the final grade is my best guess for your final grade.   However you should not consider it a firm grade because there are too many variables still left to be decided.   You probably have a good idea of what points you have already earned for the still not included grades.     We are going to assume that you only know your quiz and exam grades so far.   You have only had 5 quizzes and you will have 6 quizzes by the end of the semester and you will be able to drop 2 of your quiz grades.   You have only had two Exam.   I am assuming that your Exam average represents the average that you will get on all future exams and final exam.  

Expected Final Grade simple ={ [ (Quiz Average of 25 pts * 4) + Exam Average so far * 48 ] / 580} * 100  = % expected (90 to 100 A, 80 to 89 B etc.)

This simple formula assumes that Exam (of whatever exams you have already taken) Average = Average of your EI, EII, EIII and final Exam.   It also does not take into account that you actually get to drop 2 of the quizzes so that your quiz average may be higher than the average given here.   This also give no credit for your lab grade (worth 200 of 800 pts), your mastering grade (20 pts of 800 pts), your extra credit for attendance (15 pts of 800 pts).   You will get the attendance Extra Credit if you attended 90% of the classes this semester.   You probably have a pretty good idea of your lab grade and your mastering grade.  

If you want to guess lab grade, mastering grade and attendance Extra Credit numbers are then you can use the following:

Expected Final Grade complicated with your best guess for lab grade, mastering grade & EC for attendance grade  = {[(Q Average * 4) + (Exam Average * 48) + (Lab Average as a % of 100 * 2) + ((Mastering grade as a % of 20 pts)*20)+15 (if you missed less than 3 days) ]/800} * 100 = % of 100 pts

Example:   Q ave = 20 / 25, Exam ave = 90/100, mastering = 15/20 pts, Lab Grade = 90 %  &  I am getting the EC for attendance, then

Expected Final Grade = {[(20 *4)+ (90*4.8) + (90 *2) + (15/20)*20 + 15 pts attend extra credit]/800}*100 =  90.3 %  or I think I will be getting a borderline A

posted by Dr. Hahn on 6/23/13 Sunday at 9:30 pm from her new 200 Bentree Lane, Florence, SC apartment

***********

Here is the answer key & blank form for Quiz V.   Also here is the Titration Help.   I'll try to post an example of the titration calculation as soon as I am finished with it.   posted by Dr. Hahn at 1:30 pm on 6/20/13 from her CEMC 104A temporary office

*******************

This next document is for the pH lab.   I am attaching an excel spreadsheet giving the expected calculation for the titration experiment of the pH values.   pH calculated data  Please plot the data if you got weird results in your pH experiment.   To plot from the excel spreadsheet:   (a) select all values including the title of the columns (b)   in the top tab where it says ("file" "home" "insert" "page layout"   etc.)   click on the "insert".   (c)  under the "insert" tab   where it says "table"  "illustrations"  "charts"   "sparklines",   look at the section above "charts"  (d)   where it says "area"   "scatter"   "other charts"    click on the triangle to the right of "scatter"  (e)   select where it says "scatter with smooth lines and  markers"   (f)   a plot of the calculated data should appear    (g)  click on some other part of the spreadsheet other than the plot   (h)  do preview print to see if your plot includes both the plot and the spreadsheet of the chart   You may have to click on the plot to move it around a bit so that everything shows up in your plot.    Attach as your plot for the titration lab.  

If you like you can also plot your actual data (no matter how ridiculous) by inputting your data into an excel spreadsheet table and doing the same thing as given in the directions above.    posted by Dr. Hahn at 4:30 pm on 6/19/13 from her CEMC 104A temporary office

******************

Here finally is your answer key with points for Exam II.   Please print out and bring with you to the 6/19 Wednesday class.   I will be returning Exam II on 6/19.   If I forget, ask me to go over Exam II and for me to remind you that you may only request regrades during the class when I return your exams.   I will have at least 4 copies of the answer key with points for common mistakes during the  6/19 class (for those of you who were not able to print out a copy of the answer key to bring with you to class.).   Your objective is to help me by checking for any errors which I may have made in grading your exams.   Keep in mind that the biggest mistake that I usually make is in adding up the points for your grades.   Remember also that we are taking Quiz V and that your Kinetics lab is due on 6/20 Thursday by 10:15 am.  posted by Dr. Hahn from her CEMC 104A temporary office

*************************************

This next document is for the lab.   I am attaching an excel spreadsheet for the plot that you need for the "Kinetics" lab.   Your number of drops should be exactly the same as my data.   Your time should be different than my data and dependent on your data.   What you can do is average the times for your two runs of your kinetic data (A1 & A2 are your two 11 drops of thiosulfate runs) and then input those values into my spreadsheet column A.    Then the entire plot should change to your plots.  I think this should work.   In any case, you will at least have an excel spreadsheet as an example for what to do for your plot.   This Excel Spreadsheet will only be up until 6/20 Thursday until 9:30 am.   posted by Dr. Hahn at 4:05 pm from her CEMC 104A temporary office

***************************************

Here is your Quiz IV answer key and blank form.   Please print out the key and bring it with you to class.   I will have a few copies of the answer key but not enough for the entire class (because I am using my office printer to print out your quizzes and exams instead of the copy machine.).  I am finished grading your Quiz IV and I will return it to you on Thursday so that you can study it for Exam II.    Don't forget that your lab report for the "Thermochemistry Lab" is also due on 6/13 Thursday by 10:15 am or you will lose 20% for every business day that it is late. 

Exam II will cover all of Chapter 11, Chapter 12 and Chapter 13.   I did not give you one of the problems which you are responsible for on your Quiz IV.   Take a look at Spring Semester Final Exam for this problem.    You may also find this problem on Quiz IV (hyperlinked here) question # 1 from the Spring 13 semester.   Study hard for your Exam II and make me proud that you  are my students.    posted by Dr. Hahn at 4:15 pm on 6/12/13 Wednesday from her CEMC 104A temporary office

****************************

Here is your Quiz III answer key and blank form (with common mistakes and poitns taken for common mistakes).   I will print out a few of the answer keys (but not enough for everyone in class.).   You will need to print out your own answer key to bring to class.   If not enough of you come to class with the answer key printed out, I will hand out the graded quizzes on Wednesday instead of tomorrow ( to give you time to print out the answer key).  

Don't forget that by class vote, you decided on the deadline for turning in labs.   So you need to turn in the Normality lab report form by 10:15 am on Tuesday 6/11.   If you turn in the lab report form late, you will lose 20% for every day your turn in the report form late.   If you turn in the lab report form by 10:20 am, then it will be considered one day late, so you will lose 20% of your lab report grade.   (I do not want you to work on your lab report while I am lecturing in the lecture.  If you work on your lab report instead of paying attention to the lecture, you will mess up your lecture exams and quizzes.)   posted by Dr. Hahn at 4:20 pm 6/10/13 from her CEMC 104A temporary office (during renovation of LSF)

***************

Here is your Exam I answer key with blank form and common mistakes and points taken for common mistakes.   As discussed at the last class meeting, please print out the key and bring it to class so that you can use it to check for mistakes on your graded exams which I will return during Monday lecture.   Keep in mind that if I made a mistake in grading your exam, you must request a regrade in writing the day that you get back your exam.   If you do not make a regrade request on that date, then you will not get another chance to ask for a regrade.   As discussed in class, I will have a few copies of the answer key to hand out in class in case you have not been able to print out the answer key.   posted by Dr. Hahn at 3:30 pm 6/8/13 from her 312 Lancer Dr. Columbia, SC home

Here is the Quiz II answer key and blank form.   To study for Exam I, please study Quiz I and Quiz II from Summer I.   If you have time also take a look at Quiz I, Quiz II, and Exam I from the Spring 13 semester.   Those can be found with in the text as hyperlinks like your answer key hyperlinks.  Good luck studying for Exam I.     posted by Dr. Hahn on 6/4/13 at 2:55 pm from her CEMC temporary office (during renovation)

Here is the Quiz I Key and Blank form.   Here is the periodic table with a list of what you need to know.   posted by Dr. Hahn  6/1/13 Saturday from 312 Lancer Dr. / Columbia, SC

General Chemistry II  Syllabus Lecture   Here is a copy of the syllabus for the lecture.   posted 5/29/13 W 10:50 pm from 312 Lancer Dr. / Columbia, SC

General Chemistry II Syllabus Lab.   Here is a copy of the syllabus for the lab.   (posted by Dr. Hahn at 6/4/13 at 2:50 pm from her CEMC temporary office.)

############################################################################################# end General Chemistry II Summer 2013

postings are listed most recent posting first

For both the General Chemistry II Spring 2013   Lecture & Lab (below)   Once again I posted all grades so far between LSF 301 and LSF 302.   I included all documented excuses that students have submitted as of    4/21/13 on the posted grades dated 4/22/13 already posted.    When students submit a letter from the hospital, I accept it.   If you tell me in my ear that you were not feeling well and missed an exam, I am not going to accept it as a valid excuse.   Just because one of your friends misses 2 quizzes and 4 labs and still seem to not get zeros, you should not think that I am across the board not counting off for not doing work.   Your friends probably brought me air tight documentation - written hospital notes, hospital bills, etc.   (If you know that your friend has a friend at the hospital who prints out official documents for false documentation, please let me know and I will call them up on it.)   I am giving zeros for every quiz, for every exam for every lab where the student had no documentation because that is what the student earned.

Those of you in the Lab, I collected all of your graded old lab report forms for extra credit (so that I can use the same lab report forms without a 100 of these graded forms floating around).   Your last lab report should not have been put in with the graded lab report form.   I already graded the lab report for the Coordination Complex last lab for the Wednesday and Friday lab sections.   When I posted grades (on 4/22) I posted the average including the last lab for only the Wednesday & Friday labs  but not for the Monday lab (because the Monday lab turned in their last lab report on 4/22 Monday).   Since I post the grades for all of my sections at the same time (to make guessing who someone is from the posted grades), if I had only posted the grades to 2 of the sections (Wednesday & Friday section) (& you can all look at everyone's grades),   you would have been able to tell who is in the Monday section.   I mention this because apparently some of you thought that your posted average looked odd because it did not match your grades.   It is because there was a hidden lab (last lab) not shown on the posted grades.   If you turned in your last lab into the pile of 12 lab reports (especially put into the middle of your stapled bundle, I may not see that you turned in your lab lab at all.   ( some labs are 5 pages, some labs are 4 pages, if everything is all bundled together, it is easy enough for me to miss a single page.)

Upshot:   If you are in one of my lab sections, and you turned in your last lab report by bundling it with your old graded lab report, please tell me.  (You can email me at:     jhahn@fmarion.edu.)   

Lecture Professors get all of your final lab grades in chart format from all of your lab professors.   Your lecture professor does not grade your lab final exam.   Those of you in my lab section, your lab final exam was prepared by me and was graded by me.   I know that in some of the lab sections there was a common lab final which gets graded by a number of lab professors.   My lab sections are not in that group.   I could tell when I was grading the lab final that some of you did not prepare at all for the lab final which you got (which was not multiple choice) but all long answer.   I had gone over what to expect on the lab final  and had gone over the correct answers although I did not give out the exact wording of the questions to expect in the last lab before the lab final exam.

I am still grading your lab final exam.  I will soon submit the lab grades (probably today) to the lecture professors.   I am still grading your lecture final exam.   Final grades are due on 5/3/13 Wednesday.   If you have not gotten a valid documented excuse for missed work, it is now too late.   I am not able to consider it and I will not submit a regrade form to the registrar to accommodate your late documentation submission.  I cannot ask the lecture professors to submit a regrade form because I change a lab grade because of a late documentation submission.  

For the extra credit for attendance in the lecture, I have hardcopy signatures for days which you attended.   If you do not get the attendance EC  because you forgot to sign in  3 times this semester, I am  not  going to say "... Oh, I saw you in class that day so OK, you get the EC points..."   If I said that you would know that I am not being truthful because if you try to remember 4000 (~40 days this semester, ~ 105 students in my lecture class) individual events over a course of 3 months, I am sure that there is no way to remember that.   If I do give you EC (even though your signature on the attendance sheet does not indicate that)  then I am either just caving because you are an effective, certifiable nasty person (and I am afraid of you) or I am just giving you points because of some personal feeling I have about you.   I am not doing either.    (I do seem to remember that there were some students in class who held the sign in sheet hostage until a few students asked why the sign in sheet had not reached them.)  (bottom line:   If you did not sign in, you were not in class.  You are not getting the EC for attendance.)   posted by Dr. Hahn at 10 am 4/28/13 Sunday from her 312 Lancer Dr. / Columbia, SC home

PS: on 4/26 F for the 8:30 am final exam, I had to drive an hour and a half from Columbia by 8:30 am.   I got up at 5 am and got to Florence at 7:30 am.   I barely managed to zerox your final exam at around 6:30 pm on 4/25 Thursday and got home to Columbia at around 8pm.   I was up until 2 am or so for 3 days before that (making up your final exam, doing grading)  so I was actually afraid that I would fall asleep on my drive home.   I heard some of you were going drinking ( illegal underage drinking ?).   Obviously I did not join any of  you going drinking.   I do not go drinking alcohol because I don't like it and I like drinking coffee and diet coke instead.  I never go drinking (even water) with my students.    Friday after the last final exam, I drove an hour and a half home to my parent's house in Columbia, SC  & I was really, really tired.   I'm still tired as I grade your lab final and lecture final.

  What am I doing in my office today, 4/25/13 ?    I am making up your final exams for the Gen Chem II lecture class.  Making up exams is one thing that I cannot do while sitting out in public.   (~1/3 multiple choice, ~ 1/3 short answers, ~ 1/3 long answer) exactly like I said that I would make up the final.   No, I never said that I will accept any attempt on the "Mastering".   There is probably a professor in one of the other sections of the General Chemistry Lecture who said that but I am not that person.   I would know what I said and what I did not say.   I am not grading in my office today because I need to make up the final for the lecture (final 4/26/13 at 8:30 am for the 9:30 am class & at 11:30 am for the 11:30 am class).   Other things I am not doing in my office:   I am not writing a research proposal.   I am not having a meeting with other faculty. I am not showing an undergrad (or for that matter any student or even some other professor)  how to grade my Gen Chem lab final exam.   posted by Dr. Hahn from her FMU office at 9:54 am 4/25/13

#################################################################################################################

General Chemistry II Lecture: Spring 2013 (below)

Schedule  Spring 2013 Semester:  

     General Chem II  Lecture 

     CHEM 102  MWF  9:30-10:20 am   LSF 301 

     CHEM 102  MWF 11:30 am -12:20 pm  LSF 301 (~ 60 students per section)

     General Chem I Lab

     CHEM 102L prelab LSF 301/ lab MSB 316    M 1:30-4:20 pm

     CHEM 102L prelab LSF 301 / lab MSB 316   W 1:30-4:20 pm         

     CHEM 102L prelab LSF 301 / lab MSB 316   F 12:30-3:20 pm (~ 30 students per section)

Finally here is the answer key for the Final Exam.   I was a little too busy to post it before but since my Summer I Gen Chem II students asked for the key, here it is.   posted by Dr. Hahn on 6/11/13 at 11:30 pm from here 312 Lancer Dr. Columbia, SC home

Here is the Quiz VII Take Home Quiz Blank form and answer key.   To study for the Final Exam, please study all your old exams and old quizzes. ( I will try my best to not give the exact same question but since I made up all the quizzes, exams and will be making up the final as well, it is really hard for me to come up with really innovative ways to ask the same question.)    Both sections are responsible for both forms of the exams and quizzes (for SA & LA).   Good luck studying for the Final Exam.  

For the 9:30 am MWF lecture class, the final exam  is at 4/26 F at 8:30 am to 10:30 am.    For the 11:30 am MWF lecture class the final exam is at 4/26 F at 11:30 am to 1:45 pm.   If you miss the final exam, I will have to give you a make-up final exam.   (Unlike your missed exam and missed quiz, I will not give you an average because this is the only final we are taking this semester.)    The make up final exam will not be the same as one of the final exams given at the regular time.   If you miss the final exam, I will have to give you an incomplete for this semester and arrange for a time for you to take the makeup final exam because it takes me about 2 to 3 days to make up an exam.  (There is not enough time for me to makeup an extra exam before grades are due.)  If you are in my 9:30 am MWF class and want to take the Final with the 11:30 am MWF class, please ask me ahead of time if possible so that I have enough exams.    It would be preferable to take the final in the wrong section than to completely miss the Final exam.   However because I am giving the multiple choice question (from EI, EII, EIII) for your own section, if you go to the wrong section, you may not do as well as if you take the final that matches your own section.   

Deadline for documentation:    The final deadline for you to turn in documenatation for missed work (which will become zeros) is at the Final Exam (4/26F at 10:30 am or 4/26 F at 1:45 pm)   Please note that you need to have documentation in order to not get a zero on exams, quizzes, and labs (for those of you who are in my lecture and in my lab section).    The reason that I ask for documentation is to ensure that everyone is treated equally fairly and so that an adjustment to your grade is not because of some sort of personal favor which I allow for a certain segment of the class.   I do not want not giving a zero for missed work to reflect how much I like you or how much brown nosing you did during the semester.   I would like hardcopy documents which I can keep in my files to excuse missed work.    The more complete your documentation, the more likely it is that I will accept your documentation for your missed work.     Just showing me a text in your phone or just showing me a document (& then not submitting the hard copy of the document) is insufficient documentation.     posted by Dr. Hahn at 4:20 pm from her FMU office

********************

Here is the blank form of the TakeHomeQuizVII-9:30amform & the TakeHomeQuizVII-11:30amform.    If you were not in class, you have my permission to take the take home quiz for your section.   You will however have to return the takehome quiz for the deadline stated.   I will hand out the answer key for the 9:30 am class at 9:45 am Monday 4/22 and I will hand out the answer key for the 11:30 am class at 11:45 am Monday 4/22.   

If you are turning in the take home during class, you need to turn it in by 9:45 am for the 9:30 am form and at 11:45 am for the 11:30 form.   If you are turning in the take home before the deadline, you may turn in the take home into my "turn in box" in between the doors of LSF 304 or under the door of my office LSF 303H any time between now and when I will check my turn in box and my office before I walk over to the lecture hall.   I will walk over to the lecture room for the 9:30 am class at 9:20 am and for the 11:30 am class at 11:20 am.   If you turn in your take home (to my turn in box or my office) after 9:20 am (for the 9:30 form) and after 11:20 am (for the 11:30 form), then I will next see the quiz after I have already handed out the take home quiz answer key.   If your take home quiz is turned in after I have already handed out the answer key, it will be worth zero points.

posted by Dr. Hahn at 2:50 pm 4/19/13 from her FMU office

*********************

What did I say?     A few of you said that I had said that I would give you full credit if you just went in and opened up the "Mastering" and attempted one problem.   I never said that this semester.  Some of you insisted that I had said that I would give credit for just opening up the "Mastering".  I am sure that I would know if I said this.   I did not do that I am positive.    I did do that last semester.   Keep in mind that the "Mastering" is common for all sections of General Chemistry and I was told that I am supposed to give points for "Mastering" according to about 3 of the professors who teach Gen Chem and  the Chairman.    Last semester I kept assigning "Mastering" and many of you kept not doing the "Mastering" so that I kept moving the deadline.   There were some people who had done the "Mastering" homework all semester long so instead of not counting work already done by a significant portion of the class, I opened up "Mastering" for all prior chapters and said that if you went in and attempted at least one question in each chapter, that I would give "Mastering" points.  

This semester some of the "Mastering" questions which I assigned had components which I had to go in and manually grade.   For those parts, I said that I would give you full credit if you went in and wrote anything into the parts where you could write essays.   I never said that I am going to give everyone "Mastering" points for just going in and opening up chapters.   In fact we had several conversations where you asked me if I would re-open the "Mastering" deadline.   What I said is that because the majority of the students in the class already have a significant number of points for the "Mastering" it would be unfair for me to do that.   (According to the "Mastering", the homework that I am assigning should take you between 20 and 30 minutes to complete.   The first few chapters I did assign some 2 or 3 hour homework sets.)   Students have been delaying studying for their other classes to meet the "Mastering" deadlines.  

I often hear that I said something when I did not.   Since I never said that I would give "Mastering" points if you just go in and open up all chapters and that I would open up all chapter, I am not sure where the students in class heard this.    Often I hear something like this and then I learn that one of the other professors teaching another section of the General Chemistry is doing something.    I also did not secretly tell someone that I will be doing this in the future but that I have not told the class that I am going to be doing this.  

I did have a few people who asked about one particular problem on "Mastering".  This was question # 16.68.   I will give credit for 16.68 if you attempted this particular problem because a few students came to tell me that they were having difficulty with this one problem.    I have not tried  to duplicate the problem that some  of you were having but I suspect that the problem is that since it asks that you calculate at least 5 points on a strong acid strong base titration that most of you had one error among the 5 points.   However this is one problem (16.68) and not all of the "Mastering homework".      

Bottom Line:   If you did not hear something directly coming out of my mouth or posted on this website, it is not true.   I never make announcements by telling a few students and then announcing something during  the lecture 2 weeks later.    So "Mastering" still counts 20 of 800 points.   If the deadline for the "Mastering" has passed, I am not going to reset the deadline again.   You will get a grade which corresponds with your performance on the "Mastering".      posted by Dr. Hahn   4/18/13

PS:   I also heard the one that says that your lab final exam is graded by your lecture professor.   That one is also not true.   Your lab professor submits the final lab grade to all lecture professors.   We lecture professors most of the time don't even get your lab final exam grades.  

I also heard the one that says that your final exam for this class is a common standardized ACS final given during the common final exam time for all sections of General Chemistry.   Not true.   In fact not one professor gave a final exam at the "common General Chemistry final exam time" last semester.  My syllabus says that your final exam is the same format as all of your other exams and we are having our final at the final exam day assigned by the registrar for classes held at our class time.

************

About the Extra Credit for Attendance:   All semester long you have been signing into the sign in sheet for every day of the semester.   I have hard copy documentation of your sign - in.   You extra credit will depend on the hard copy document of your having signed in.   If you were in attendance but did not sign in, it is impossible for me to remember at the end of the semester who attended and who did not attend particular days.   Would you be able to remember particular students of the approximately 110 students in my 2 lecture sections for the approximately 40 lecture class days this semester (or 80 class periods for the 2 sections) ?  That is 4400 absence/attendance that I would have to remember.   Especially with some students attending the other section of the lecture on particular days, remembering attendance is almost impossible.   I barely know maybe the names of half the students (I have to admit).  

Bottom line:   If you did not sign on the attendance sheet, you were not there for the purpose of the attendance extra credit. ( If you come to see me and we go over all your attendance days, if you verbally tell me that you were there  a few days but you forgot to sign in, I am not going to change your attendance days.)    Conversely if I do not give you an attendance extra credit, I have hard copy documentation of your signatures which proves why you did or did not receive the attendance extra credit.   Your attendance extra credit is not dependent on me having a feeling of:   "  Oh, yes student A was there all semester long so that person gets the attendance extra credit...."    Attendance Extra Credit is based on hard copy proof.   You are of course allowed to bring me (hard copy documentation) excuses for attendance if you think you missed enough days that you think you might not get the attendance extra credit points.   posted by Dr. Hahn on 4/15/13 at 11 am from her Francis Marion office   

PS:   I always keep attendance sheets for at least 2 to 3 years, so if you think I was in error, you can always look at my attendance sheets even after I have submitted your grades.   On the other hand I do not have time to review your attendance days individually now.

*****************

Here is the answer key and blank form of Exam III.   I am still grading.   posted 4/14/13 at 10 pm from 312 Lancer Dr. Columbia, SC

What you need to make to earn a  desired grade on the Final Exam (all grades are listed as a percentage of 100%, for the Quiz Ave, you will have to add your average by 5 in order to input into this formula)

{(desired final grade as a %)*8 - (Exam ave) * 3 - (Quiz ave as %) * 1 - (lab ave as %) * 2 - (mastering as %)*0.2 -15 (if you have EC attendance)}*(0.555) = Grade on the Final Exam Needed for the Desired Final Grade

For instance if your desired grade is  at least a B (above 80%), your exam average is 85, quiz average is 80%, lab grade is 75%, mastering average is 95% and you will be getting the EC for attendance then using the formula above, you would need:

{80%)*8 - (85%)*3 - (80%)*1 - (75%)*2 - (95)*0.2 - 15 }*0.555  = 67.16 %, You need 67.16 on the final exam if you would like to get a B final grade on the class.  

Please keep in mind that the grade that you earn in the class is the grade you earn by working really hard.   The grade you make is not dependent on the grade that you need in order to achieve your desired goal.   If the class average on exams is 80%, it is highly unlikely that I will curve the class's exam grade to a 90%. 

 posted by Dr. Hahn 4/13/13 at 10:20 pm

******************

I've posted QI to QVI, your Quiz average and EI, EII  and exam averages by the door of LSF 301 for everyone who submitted a pin number.   You should check for any errors.   You should also make sure that you have provided documentation for any missed quizzes and exams.   If you see blanks on the spreadsheet, it is a quiz or exam which you did not take.   Make sure to provide any documentation for those missing grades by the Final Exam Date (absolute last deadline).    Final Exam for this class is on 4/26 Friday (8:30 am to 10:30 am for the 9:30 am class and 11:30 am to 1:45 pm for the 11:30 am class).   If you bring me any documentation after the final deadline, I will not consider it for calculating your grade.    posted by Dr. Hahn from her Francis Marion office at 4 pm 4/11/13.   PS:   I am still grading Exam III.

************** 

Exam III:   In weak acid or weak base calculation of pH problem (using ICE), I will provide the equation which you need to start the problem.   However in some other part of the exam, I may ask that you write the equation for weak acid (base) equilibrium with its conjugate base (acid).   posted by Dr. Hahn at 9:40 am 4/9/13 Tuesday from her Francis Marion office

Here is the Quiz VI (ave=91.22%) answer key & blank form.   Note that I was trying to write a shorter (less time for you to complete) quiz as per some of your suggestions. I split up the important parts of this chapter between the 9:30 am class and 11:30 am class quiz.   Most of you were finished with the quiz in less than 10 minutes.   When studying for  Exam III however, please study both forms of the quiz.   I will not limit the exam to the quiz which I gave in your own section.  Good luck studying for the Exam.   I know you are all going to do well because you will put in lots of time and effort.    posted by Dr. Hahn at 11:16 am 4/6/13 from her Columbia, SC home.

************************

Here is a Titration Help [in region 1 the formula for [H₃O⁺] = concentration of strong acid (not concentration of strong base as I wrote on my handout)   Sorry.   My Bad.]   handout.   Use this and try to see if you can understand the problem which I went over as an example in the lecture.  

Final Exam Info:   One of my students asked me if we will be getting the ACS standardized final exam as our final exam.   No, that is not true.   Our Final Exam for the 9:30 am MWF class will be at 4/26 F at 8:30 to 10:30 am (in same room) and the 11:30 MWF class's final will be at 4/26 F at 11:30 to 1:45 pm (in the same room).   This final exam time is not (not) the common final exam time for Chemistry final exams which some people sometimes use.    My class final exam format and final exam schedule is also as stated in the syllabus and is the scheduled final exam time for a class with a lecture at our class time.   I will also be the person who will assign your final grades.   I will be the person who grades your final exam.    I am not suddenly disappearing never to be seen again.  

There is a National American Chemical Society meeting (in New Orleans) next week but I am not going to that meeting so I will also be the person administering your Exam III on 4/10/13.   I will be here next week so you should not expect any canceled classes.   As always that exam will be the normal format exam (1/3 multiple choice, 1/3 short answer, 1/3 long answer).   I sometimes have a few students who hear from their friends (who are in another section of the General Chemistry II lecture) how an exam / final exams will be given and end up hurting themselves by studying the wrong thing or even almost missing the final exam date.    Trust me.   I have your best interest at heart.   The syllabus has not changed.      

Also not true, I will not be changing the format of the next exam to multiple choice.  My syllabus stated that our final exam will consist of 1/3 multiple choice, 1/3 short answer and 1/3 long answer type questions and this will still be the case.   If my syllabus had stated that our final exam will be the ACS standardized final exam, then you would expect that but as always, I do not mid semester change my syllabus and catch students off guard.    posted by Dr. Hahn at 4/4/13 at 11:10 am from her Francis Marion office

Here are the answer keys for Quiz V.(ave=81.83)   I am still working on grading your quizzes.    posted by Dr. Hahn at 1:04 pm 3/30/13 from 312 Lacer Dr. Columbia, SC

********************

A comment about what help you get by coming to see me in my office:    Despite a student's comment, you do not get to come to my office and ask me what is on the Quiz / what is on the Exam and get additional information about what is on the quiz or exam.    The purpose of my office hours is for you to ask questions about the course content & for clarification about how grades are calculated (although the grades will be calculated exactly as specified on my syllabus.   I am not going to change the way I grade the class and whisper to  a few students how their grades are going to be calculated.   I will not change the way I grade the class and  hurt a bunch of students who are expecting their grades to be calculated as specified on the syllabus.     Yes the "Mastering" will count as specified on my syllabus.  Yes the extra credit for attendance will count as specified on my syllabus.  No I am not just going to not count those because my syllabus says that it will count that way and students will be hurt if I change that policy mid semester.    If you want to see if you will be able to get away without doing those things (because you think or someone says that I will not count those things), be my guest, everyone has a right to shoot themselves in the foot if they want.

I WILL NOT give students who come to my office hours (meet with me individually) more information about what is going to be on the quiz or exam than I gave out in class.   WHY NOT ?   I am not giving out extra credit points for coming to see me because that would be UNFAIR.    If some student says that they know what is on the Quiz or Exam because they came to see me and I told them what is on the Exam/Quiz, that student is being untruthful.  I have a bridge in Brooklyn that I can sell you for a song, etc....   Almost anyone can guess what is going to on the Quiz or Exam because it will be what I went over in class & what is on the quiz immediatly before the exam.   I DO NOT,   I WILL NOT and I AM NOT PLANNING ON telling anyone anything more (about what is on the Quiz/Exam) than what I told the entire class just because they came to see me individually.

PS:   I think someone is using my computer when I am not in my office.   No one else is supposed to have the authority to use my office when I am not here.   No one is supposed to use my computer when I am not in my office but there was a change on my computer when I came into my office this morning which I did not make.   I also lost a few of the answer keys to Exam II which I had on my desk over the Spring Break.  (These were answer keys that I return with the graded exam which I also posted online on this website at the beginning of Spring Break.)   I DO NOT KEEP MY EXAMS or QUIZZES ON MY OFFICE COMPUTER.   I also do not keep my grades on my office computer.   I also noticed that the day before EXAM II, my office door was left open by about 5 inches when I came in to give EXAM II.   My EXAM II was not stored in my office.   I took EXAM II home with me before the exam.  

posted by Dr. Hahn at 10:55 am 3/25/13

****************

Here is the Key for Exam II (ave = 81.58) with common points which I took for common errors.   I have posted the grades for Exam II by LSF 301 by your pin numbers (if you submitted a pin # to me initially).   I will return the graded exams + answer key on Monday 3/25 (after the end of the Spring Break).   The reason why I am doing this is because I guessed that a number of students would not come to the Friday before Spring Break starts.   I also guessed that probably the students who take the class less seriously (& are consequently not doing that well in the class) would be the students who miss the Friday before Spring Break.   I wanted to be sure to explain the grading of Exam II and any questions that anyone has with the absolute largest number of students present so I will return your exams after Spring Break.   I did almost finish grading Exam II by Tuesday 3/4 night but I would have had to pull an all-nighter to completely finish grading it and I did not want to drive 3 hours (on my daily commute) while sleepy for obvious reasons.   posted by Dr. Hahn 3/16/13 at 1:30 pm

************************

How to guess-timate your final grade:

This guess for the final grade is my best guess for your final grade.   However you should not consider it a firm grade because there are too many variables still left to be decided.   You probably have a good idea of what points you have already earned for the still not included grades.     We are going to assume that you only know your quiz and exam grades so far.   You have only had 4 quizzes and you will have 7 quizzes by the end of the semester and you will be able to drop 2 of your quiz grades.   You have only had one Exam already in the books so far.  

Expected Final Grade simple ={ [ (Quiz Average - of 20 pts * 5) + Exam Average so far * 48 ] / 580} * 100  = % expected (90 to 100 A, 80 to 89 B etc.)

This simple formula assumes that Exam (of whatever exams you have already taken) Average = Average of your EI, EII, EIII and final Exam.   It also does not take into account that you actually get to drop 2 of the quizzes so that your quiz average may be higher than the average given here.   This also give no credit for your lab grade (worth 200 of 800 pts), your mastering grade (20 pts of 800 pts), your extra credit for attendance (15 pts of 800 pts).   You will get the attendance Extra Credit if you missed fewer than approximately 3 classes this semester.   You probably have a pretty good idea of your lab grade and your mastering grade.  

If you want to guess lab grade, mastering grade and attendance Extra Credit numbers are then you can use the following:

Expected Final Grade complicated with your best guess for lab grade, mastering grade & EC for attendance grade  = {[(Q Average * 5) + (Exam Average * 48) + (Lab Average as a % of 100 * 2) + ((Mastering grade as a % of 20 pts)*20)+15 (if you missed less than 3 days) ]/800} * 100 = % of 100 pts

Example:   Q ave = 18 / 20, Exam ave = 90/100, mastering = 15/20 pts, Lab Grade = 85 %  &  I am getting the EC for attendance, then

Expected Final Grade = {[(18 *5)+ (90*4.8) + (85 *2) + (15/20)*20 + 15 pts attend extra credit]/800}*100 = 90.3 %  or I think I will be getting a borderline A

posted by Dr. Hahn at 3/11 Monday at 5 pm from her Francis Marion office LSF 303 H

*******Here is the ICE example promised.  There are 2 problems.  The first is the problem from the Quiz IV 9:30 B form.   The second problem is the same problem revised to use the variable x to solve the equilibrium concentration.    (1)  You do not use the variable, x, if you are given the concentration of one of the equilibrium concentration.   This problem you had the [NH₃] given.   (2)  You need to use the variable, x, if you are given the equilibrium constant K_eq but are not given any of the equilibrium concentrations.

 Also I want to point out that I thought that I had already finished the quadratic example so did not complete it in class today or Friday.   So on Exam II, I will definitely not give you a ICE problem involving a quadratic equation.    posted Dr. Hahn at 9:45 pm 3/4/13 from her Columbia, SC  home

*************

Here is the QIV (ave = 82.82) answer key and blank form.   Exam II will cover all of Chapter 12, Chapter 13, Chapter 14.   I finished covering all of chapter 14 on Friday.   Monday I will just finish some additional examples of the ICE equilibrium problems and answer any questions which you may have.   You will be responsible for the ICE problems which I will cover on Monday.   Please come with questions.   Study hard.    posted by Dr. Hahn at 7:05 am 3/2/13 from 312 Lancer Dr. Columbia, SC

**************

I have posted homework for Chapter 14 on "Mastering".   Exam II will cover all of (a) Chapter 12 - Solutions (b) Chapter 13 - Kinetics and (c) Chater 14 - Chemical Equilibrium.   I am almost certain that we will finish all of Chapter 14 before Exam II.   Please study in order of importance (1) Quiz III (key already posted) and Quiz IV ( key will be posted ASAP)  (2) examples discussed in class  (3) lecture material  (4)  "Mastering" homework   posted by Dr. Hahn at 11:05 pm 2/27/13 from 312 Lancer Dr. Columbia, SC

*******************  

Here is the answer key for Quiz III (ave  = 80.68) and the blank form.   Please be sure to study this material before Exam II.   Please try to do the actual problems (for both sections) without looking at the answer keys.   I have also now posted the "Mastering" for Chapter 12, and 13.   I have also moved the deadline for the earlier "Mastering" from chapters 6 & 11.   Those chapters will meet its final deadline on Monday at noon.  

Please do not do the "Mastering" if the deadline has already passed.   You are welcome to work on it but it will not be worth any points.   If you ask and I adjust the deadline, any work that you do on the "Mastering" between when you worked on it after the deadline and when I reset the deadline will not count for points.   So before you do any "Mastering" homework, please make sure that the deadline has not yet passed.   posted by Dr. Hahn at 11:26 pm on 2/24 Sunday from 312 Lancer Dr. Columbia, SC

********************************

Finally here is the answer key for Exam I.  (ave = 82.30) I was actually very pleased with how you guys did on the exam.   I am posting it so that you will be able to study it for the final exam.   posted by Dr. Hahn 2/16/12 at 11:50 pm.

*******************

A student asked me about the periodic table and VSEPRT handout usage on Exam I.   Yes you will be able to use both however you will not be able to come to class with your own copy of the periodic table and VSEPRT handout.   The only thing that you will have at your desk during Exam I will be (a) a picture ID [if you do not have one, I will note that you took the exam without a picture ID] (b) a calculator   (c) Exam I which I will handout  (d) pencil, pen, eraser.    Your book bags will be stored in the front of the room so I recommend not coming with anything big and valuable (such as a big purse).   I will also come around and ask you to sign and print your name on a sign-in sheet (in front of me) and will write down the number of your exam on the sign-in sheet.   You will not be allowed to have your own scratch paper which you  bring in yourself.   There will be plenty of room on the exam itself because if you run out of space on the front page of the exam itself, you will be able to write on the back of the pages.   You will once again not be allowed to come in with your own copy of the periodic table or VSEPRT handout.   At the end of the exam, you will turn in  every single sheet of paper which I handed out at the beginning of the exam. 

Please note that if you come and ask me "what will be on the exam"   I will do my very best to repeat exactly what I said in front of the entire class.   You will not get any additional hints about anything which I did not state in front of the entire class.   Good luck studying for the exam.   posted by Dr. Hahn at 9:35 pm 2/4/13 Monday from 312 Lancer Dr. / Columbia, SC  

*******************

Here is the answer key for Quiz II. (ave = 85.08)  To study for Exam I, make sure to study Quiz I & Quiz II.   Studying Quiz I & II means that you should make sure that you understand the answers for all 4 forms of both quizzes.   After you have looked at the answer, then take the blank quizzes and make sure that you can correctly answer all 4 forms of both quizzes.    After you have put pen to paper and answered the quizzes, compare your answers to the answer in the answer keys.  You need to understand the answer to both quizzes not memorize the answer to the specific questions because for instance if I ask the Hess's Law questions, I will not give your the same 2 equations which I gave on the 2 forms of the quiz I that had Hess's Law in it.  

After that you should make sure that you understand the examples which I worked in class.   If you do not understand, then please come to class Monday prepared to ask me anything which you do not understand.   At this point because I already spent some time answering questions in Friday's class, I doubt that I will get to the crystallography portion of Chapter 11.   I am also certain that I will not cover any part of chapter 12.  So Exam I will include chapter 6 and parts of Chapter 11.   You may also want to look at Quiz VII   or Quiz VI (from CHEM 101 Fall 12) for the review part of our (CHEM 102) Exam I. 

If you have time, you should also see if you can do the Mastering homework problems which will give you more practice.   However if there is a questions in Mastering which I did not cover in class (such as the Calorie problem which one of you asked about by email), that material will not be covered in Exam I.   The Mastering problems often combine parts which I think you should know with things that I am not expecting to know.  For example in the ethanol combustion problem, I am not expecting you to be able to come up with the combustion reaction (which I never covered during lecture) but I am expecting you to be able to do the S n DH^o (product) - S n D H^o (reactant) which I covered in class and which I included on one of the class's Quizzes.    Good luck studying for Exam I.   Sorry about the overlap with the Superbowl.   Hey I am sitting here grading papers and making up your exam.   I think it is harder to make up exams and grade them than studying for them.   I am sure of course that you think it is much harder to study and take the exam.   (... the grass is always greener on the other side...  : )   Have fun studying for the exam.   posted by Dr. Hahn at 8:30 pm 2/2/13 from 312 Lancer Dr. , Columbia, SC    

****  updated by Dr. Hahn on 2/4 at 4:45 pm from her Francis Marion office (I mislabeled Quiz VII when I hyperlinked earlier and I also put in a hyperlink to Quiz VI as well.    Please note that you are not responsible for anything which I did not cover in the review during class.)

******

Based on how far we got to today, you should expect as extra credit on Quiz II material covered on Friday.   Probably this will be about the thermochemistry of the plot of the conversion of solid water to liquid water to gas water.   I will probably not get to any of the crystal structure stuff on Friday.   If I do get to the crystal structure stuff, I will not get very far into it.    One of your classmates asked me after class what I thought I would likely cover and if I thought it would be extra credit on Quiz II.   I am pretty sure that I will have extra credit on new stuff which I will cover on Friday.    This does not mean that you have to study ahead because I will cover enough before the quiz so that if you pay attention, you should be able to do all the problems on the quiz.   Good luck studying for the quiz.    posted by Dr. Hahn on 1/30 at 10:50 pm from 312 Lancer Dr. Columbia, SC.  

*********

I've posted the Chapter 11 homework on Mastering and also updated the deadline for the Chapter 6 Mastering to 2/9 after our 2/6 Exam I date.  Please let me know what specific problem you are having registering into the Mastering or you may be able to resolve the issue by directly contacting the Mastering people.   I have also set up the Mastering so that you can have unlimited access to hints.   For the essay parts, if you write down anything and just look at the answer, you will get full credit for the attempt.  

Before the exam, please download all versions of Quiz I and Quiz II and make sure that you understand the material.    As I stated in the last class, Exam I will probably include either no part of Chapter 12 or very little of Chapter 12.

If you are one of the people who have the same pin number, don't forget to contact me to give me a new pin number.    posted by Dr. Hahn at 10:55 pm 1/29/13 from her Columbia, SC  home

*****

Here is the answer key for Quiz I. (ave = 86.45)   for the General Chemistry II Lecture Spring 2013.   When I am finished grading your quizzes, I will return it to you together with the answer key which matches your quiz with common points taken off for common mistakes inside the folder which you made out for me.  Please study all forms of the quiz before Exam I.  

posted by Dr. Hahn 1/23/12 Wednesday at 4:50 pm from her Francis Marion Chemistry office

***************************************

Here is the syllabus for the General Chemistry II Lecture for Spring 2013.   Please note that in the syllabus which I handed out in class the Final exam date for the 9:30 am MWF class was erroneously listed as 4/24W at 8:30 am (that is the time for an 8:30 am MWF class).   The actual time of the final exam for the 9:30 am MWF class  is 4/26 F at 8:30 am to 10:30 am.

This is indeed where I will be posting your answer keys for quizzes.   For those of you who were not in my sections of General Chemistry I, I suggest that you download the answer keys for the exams and quizzes for General Chemistry I.   Although I will try to review (if Gen Chem I material is needed) before each topic in Gen Chem II, it will probably help you if you have an idea of what was covered in my sections.   Also it is probably a good idea to get an idea of the kinds of exams and quizzes I tend to give.  

posted by Dr. Hahn 1/10/13 Thursday at 1:45 pm from her Francis Marion Chemistry office.

####################################################################################     end Gen Chem II Lecture Spring 2013

General Chemistry II Lab Spring Semester 2013 (see below)

I gave the lab final exam to my Wednesday class.   At the top of the lab final exam, I requested that the students give their "lecture instructor name".   Several students (who are not in my lecture section but are in my lab section) gave my name as their "lecture instructor name".    Please note, the students who are in my lab section get their final lab grades submitted to your lecture instructors by me.   That is why I requested the name of your "lecture instructor name".   The lab final exams are not graded by being combined into a pile of lab exams from all sections.  "Lecture instructor name" is not the name of the lab instructor and you do not need to give me my own name because I already know the lab final exams that I am grading are from the students in my own lab section.     I made up my own section lab final exam and I will be grading my own section lab final exam.   I know that you are in my lab section because students who are not in my lab section are not taking my lab final exam.    I need the name of your lecture instructor name so I know to whom to submit your final lab grade.    Do not make my work more time consuming by not providing requested information.   posted by Dr. Hahn at 10 pm 4/17 Wednesday from 312 Lancer Dr. / Columbia, SC

****************

Here is the chemistry department common lab report form.   If any of the students in my lab section would like to use this lab report form instead of my lab report form for the 7 of 10 points for the lab report form you are welcome to use this form.   I am giving you lots of choice.   I am giving you lots of freedom.    Do what ever you think is easiest and most likely to result in a higher grade.   I am trying my hardest to help the students in my lab at the cost of a lot of time.  I am not doing this because I am trying to get a job editing lab reports because I much rather teach lecture and labs (you know that I am already set to teach General Chemistry Lecture & Lab next academic year at FMU)  rather than editing lab report forms.   Although the common lab report form has more calculations, you already collected all of the needed data  on my lab report form to complete all of the calculations.   You are welcome to attach my lab report form with my signature on it to the common lab report form.   I will however give you no points for the data which you reported on my lab report form because the common lab report form has no points on it for data.  If you  use the common lab report form, if you have my signature on my lab report form and signed out of the lab, you will still get 30 % of the points on the lab report form following our normal rules.   You still have to turn in the lab report by the normal deadline unless you would like to lose 10% of the lab report grade per day late. 

Update Bad Chemicals in Lab 22 - Strong Acid / Base titration using pH meter:   The stock room people told me that they made up new 0.1 M HCl for the Monday lab as my students started Monday lab.   Unfortunately, they did not put out the newly made solutions for my Monday students.  I noticed HCl bottles almost empty by the end of my Monday lab section.    Both about 75% of my Friday and Monday people had the same equivalence point at about 1/2 the expected equivalence point volume.   The stockroom students suggested that maybe there was a problem with the pH meters.  Since the equivalence point was measured with both a pH meter and a color indicator, the problem cannot possibly be with the pH meter.   The problem is probably with the makeup of  the 0.1 M H Cl solution.    I still think it is with the concentration difference between the two HCl bottles.   In any case, it is not the fault of my students.   It is not that an equivalence point calculation is variable and can move from one volume to another depending on temperature or some undefinable quality.   Although I have noticed that some of the doors in the lab (to the stockroom, to the balance room) have a tricky lock so that even if you have a key, the door only opens if you know some secret method of opening/closing the door.   

posted by Dr. Hahn at 11:30 pm 4/3/13 from 312 Lancer Dr. / Columbia, SC

Here is the Lab Help for the Buffer Lab.   I only provided help on parts of the lab which are on my lab report form.   The part about calculating % acetic acid is not on my lab report form  but is explained in detail on page 83 (under Concentration).  posted by Dr. Hahn from her office at 9:20 am 4/3/13

Missing Pre lab:  According to my syllabus, the policy on coming to class late (after the first 15 minutes of the prelab) is that you will lose 3 points.  If you come to class late because you are making up the lab in a different section which meets at a different time does not excuse you from this policy.   If you come to class late and miss the prelab then you will precede to doing the lab incorrectly or endangering yourself or your neighbors because you missed the prelab information.   Telling me that you have the lecture notes from friends before you get to the lab, does not excuse you from this policy. 

Turning in Late Labs:    Please note that I have not reversed my policy on turning in late lab reports.   You will lose points at the rate of 10% per day if you turn in late lab reports.    Why this policy ?   (1)   When you get into the real world, you will not be allowed to turn in work a month after the work is due and still be OK.   There will be penalties in the work place just as there is in this class   (2)   Even if I really want to give no penalty for late lab reports, if I have 300 late lab reports to grade in the week of the final exams, I will not be able to grade these.  (I have had this happen at one of my former faculty positions.)    I will not be able to grade these because it takes enormous time to come up with your final grades.   At the end of the semester, I am making up final exams for both the lecture and lab as well.   Because I do not have the time to grade late lab reports, the only option is for me to assign grades of zero to anyone who turns in a lab report which was turned in 10 business days after the date the lab report was due.   (3)   It is unfair for students to turn in lab reports after all their classmates have received the graded lab reports back.  That is like turning in an exam after all their colleagues have received the graded exams back.     posted by Dr. Hahn on 3/31/13 at 1 pm from her 312 Lancer Dr. Columbia, SC home

Bad Chemicals in pH titration experiment:   The pH experiment (Measurement of pH:  Qualitative, Strong Acid/Base and Ksp)  had the HCl (0.10 M) solution which was probably defective.   The majority of the students in Friday's lab had the equivalence point after the addition of about 10 mL of the 0.10 M base rather than the 25 mL which the calculation predicted.    I am sure that the students did the experiment correctly because I actually did the experiment myself using their setup (while the students watched) and got the exact same result as the students.

This means that either the Acid is about half as acidic as it should be or the base is about twice as concentrated as expected.   There were two 0.10 M HCl bottles in the hood but there was only one 0.10 M NaOH bottle.   Some of the Friday students got the expected pH titration meaning that some of the students had the correct chemicals.   I guessed that one of the HCl bottles had the wrong concentration.   This would mean that some of the students got the correct results using the correct HCl bottle and some of the students got the wrong results using the wrong HCl bottle.   (Since there was only one NaOH bottle, if that bottle was bad, the entire class would have had the wrong results.)   It is possible that my Wednesday class had the same problem because I remember a few students having similar titration results but I just thought that they had made an experimental mistake.

It is not the fault of the students who performed the experiment because both HCl bottles were labeled 0.10 M so even the most experienced chemist would have had the same wrong result unless they knew which bottle had the bad HCl (which would obviously be impossible unless the person who made up the solution knew that they had made up the wrong solution and told some people which bottle had the wrong solution).

Upshot, just go ahead and plot the results which you got.   The students who I promised to send the expected data because of their defective pH meter, I left the sheet with your email addresses at my office so if you see this posting, please email me.    Alternatively, I will email you as soon as I get to my office on Monday.     

You can also if you want plot the following Expected-pH-data (my calculation for the expected plot) instead of your data from your experiment. 

posted by Dr. Hahn at 12:40 noon on 3/30/13

***********************************

Here is the Help for the AcidBaseKspLab  posted by Dr. Hahn at 10:40 am on 3/25/13 from her office

A few students asked when the lab report would be due (as in is it due 3/18M, 3/20W or 3/22 F).   Nope.  The lab report is not due during Spring Break.   The lab report will be due at the normal time which is in the first 15 minutes of the next lab period when we meet in LSF 301.  I don't know about you, but I am not teaching the lab during Spring Break.     posted by Dr. Hahn  3/16/13 at 1:30 pm

Here is the Lab Help for the Qualitative Analysis Lab.   posted by Dr. Hahn at 12:30 noon 3/11/13 from her office

Here is the Lab Help for the Equilibrium Lab.   posted by Dr. Hahn at 11:20 am 3/4/13 from her office.

Will there be a change of class policy so that there is no penalty for not doing a lab, for turning in a lab late or at least a change of the deadline to sometime during the lab instead in the first 15 minutes of lab (or no penalty for turning in labs late) ?   No.   Please note that the common departmental lab already has in it the 10% points off for each day late policy.  

a.   Is it fair for some people to turn in a lab report after everyone else gets back the graded lab report ?   I think despite what you may say, you know right from wrong and you know it is not fair.  

Even if you think it is fair, I can tell you that it is impossible for me to grade late lab reports close to the end of the semester.  By the end of the semester, there will be approximately 1,000 individual lab reports (each about 3 to 7 pages long with your crappy handwriting all over the pages.)  If 30 % of the class turns in one late lab report in the week preceding the final exam period, I will have 300 individual lab reports (each 3 to 7 pages long).   I will also still have to makeup lecture & lab final exam and grade them plus doing all the final grading and processing of all of the grades [lecture (100 x 7 quiz grades) + (100 x 3 exams) + (100 x 9 mastering homework grades) + (100 x 40 attendance days) + (100 x final exam)]  Even if I really want to do so, I cannot possibly do all this work in the last week of classes (even if I go sleepless for days) so I will (I kid you not) not grade late reports and will just give zeros.  

In any case usually people who turn in late lab reports get a bad grade because they waited so long that they can't even remember all of the hints that I gave in class and don't do well anyway even if you get to look at your partner's graded lab report.

b.   One of you asked if I would like it if I lost points for being 15 minutes late.   Keep in mind that your lab reports are due 7 days + 15 minutes from the start of the experiment prelab.   Most of the other lab professor collect the lab reports the same day as the experiment or a day or two after the experiment.   Approximately 20% of my class turns in the lab report the day of the experiment.   So my question is how is it that you had 7 days and you are unable to turn in a lab report?   I am already giving you 5 to 7 additional days to work on your lab report in comparison to almost all of the other lab professors.  

Why do I have the 15 minute rule?   I used to collect lab reports one week later at the end of the lab period at another university.   What happened?  No one took notes on the lab prelab and were unable to complete the next lab report (because they spent the entire lab period working on the old lab report.   Half the class spent all their time working on last week's lab report instead of working on the actual current lab and could not complete a lab at the end of class.   (This would be for a lab that normally takes a student half the lab period to complete.)  So instead of getting out of the lab period on time or even 40 minutes before the end of the lab period, students were working on their old lab reports and ran over an hour past the end of the lab period.   So my rule this semester is if you are 15 minutes late in turning in your lab reports, you have already lost the days 10% points so you should just work on the late report after you are finished actually performing the current lab. 

Why do I not just have a 15 minute rule but not take any points off for turning in a late lab report?  If there is no penalty, I might as well not even have the rule.   So if you get the lab report done in the 7 days that you have to complete the lab report instead of in the last  15 minutes of the prelab, you won't lose any points.   Additionally you will actually be able to listen to me tell you what you need to know in order to do the next lab report.   

Take home message:   No change in class policy.   YOU WILL LOSE 10% points IF YOU TURN IN A LAB REPORT 15 MINUTES AFTER THE START OF THE PRELAB.   I am not kidding.   Do not try to take advantage of me just because I am trying to be helpful.   posted by Dr. Hahn 3/2/13 at 1:40 pm from her Columbia SC home

**************************

Here is the help for the Kinetics Lab.   Hope this helps.   (Here is a slightly modified form of the same help sheet.  The earlier version was slightly unclear.)   Dr. Hahn at 12:35 noon 2/25/13   Kinetics Lab addenda:   Please note that for question # 5 on page 3 that the V final is the sum of all drops.   I think (I am not sure) when I went over this problem in the Wednesday class, I said that this was 5 drops.  posted by Dr. Hahn on 3/3/13 at 7:05 am from her Columbia, SC home

Here is help for the Electrochemistry Lab.   It is in the format of the first chart (first page) & the half reaction and calculate the standard electrode potential page (2nd page) in the standard lab report form.   I am just giving the example for cell # 1.  Also 2 of the calculated potentials gives a negative number so you may need to switch the lead wires in order to get a positive potential when you get to the lab.   Hope this helps.   posted by Dr. Hahn at 10 pm 2/18/13

If you are making up a lab by going into one of my other lab sections:   (a)   Please turn in the lab report on or before the date the lab report is due.   You can do this by turning in your lab report into the turn in box (in between the two doors of LSF 304)   (b) If the lab in which you are making up your lab is before the deadline for your lab report, turn in the lab report together with all of the other students but be sure to label clearly on the lab report that you are turning in a lab report for your lab in this other lab section (example:   If you are in the Friday lab and turn in a lab report during the Wednesday lab, on the lab report as you turn it in the report write :   "I am in Friday section and I am making up a lab in Wednesday's section." )

Why is this necessary?   Doesn't Dr. Hahn know who I am and that I am in Friday section and told her that I would be making up the lab in Wednesday's section?  Well yes I may have heard you tell me this but there are around 100 of you in my 3 sections and that week probably 2 or 3 other people said the same thing and between the number of people and the number of labs, I can't keep track of who said what for which lab.   (Keep in mind that at the end of the semester, I end up with some 1000 individual lab report grades.   Think to yourself if you would had 1000 different things to remember if you would remember individual things about the 1000 individual things without written notes.   I have some people making up labs and then I have a few people who are moving into a different lab section permanently and then a few people change lab sections for half the semester and so on. )

So what happens?   A few students yell at me for not having their lab reports with the rest of the students in the class.   Why do I not return their lab report when they turned in their lab report on time in another section?   I would have to pull their lab report from the other sections lab reports assuming that I graded the other section's lab report before I am returning your sections lab report.   In general if you don't do anything with the other people in your lab section, you are probably not going to get back your report with your  lab section.   

If you did not turn in a lab report on time with a documented excuse:    (a)  Turn in your lab report as soon as possible.   Write on the lab report that you have a documented excuse and what your documented excuse is in writing.   If you have your documentation, turn it in together with your lab report.   If you do not have your documentation yet, go ahead and turn in your lab report anyway.   You lose 10% of your lab grade for every business day that you are late.   If you are late 10 business days, you get a zero on that lab report.   If I do not find your documentation acceptable and you hold off turning in your lab report for 10 days, then  you have a zero which will drop your lab grade by one letter grade.    (b) Turn in your documentation for your absence as soon as possible.    If you wait until the end of the semester it is possible that I may not accept it.    There is a deadline for turning in documentation.   If you turn in your documentation after I have already calculated your grades, I will not submit a grade change for you.   You will just get the grade with a zero for your undocumented absence.   This is your written warning and I am absolutely going to be firm about this.    Actually if you have a legitimate documented excuse, I cannot imagine why it would take you 3 months to bring it to me.   I am absolutely within my right to ask that you bring it to me within a week of your absence.   Do not try to take advantage of my trying to help you as much as possible by ignoring my rules.   If you pass my deadline, you will lose - you will just get a zero for your unexcused absence.      

Keep in mind that the result of you yelling at me in an attempt to intimidate me into giving you a grade for something which you did not turn in is not going to result in you getting a grade for something which you did not turn in.   All it is going to do is have me wasting my time looking for something which you did not turn into me.   I may be confused for a few days (remember:    1000 individual grades by the end of the semester) as I try to figure out why I do not have a grade for you.   However I am not going to make up a grade for something which you did not turn in.

posted by Dr. Hahn 2/17/13   Sunday at 4:30 pm from 312 Lancer Dr. / Columbia, SC

First Lab Report  (Normality) is due this week.   For my 3 sections  the deadline is 1/30 W, 2/1F, 2/4M in the first 15 minutes of lab. posted Dr. Hahn at 11:00 pm 1/29/13 from her Columbia, SC home

******************* 

Here is the syllabus for the General Chemistry II Lab.    Please note that the first lab is a 2 week lab so that you will not be turning in any lab reports at the next lab class meeting.   Instead we will continue working on the same lab.    posted by Dr. Hahn at 8:40 pm 1/15/13 from her Columbia, SC home

#########################################################################################     End Gen Chem II Lab Spring 2013

For both of my General Chemistry I Lecture and Lab Students (Fall 2012)  I posted all your grades (every quiz grade, every exam grade, every lab notebook grade, etc, )  (for everyone who gave me a pin number) outside of LSF 301.   I followed exactly my grading scheme listed on the syllabus for both the lecture and the lab.   I did not change anything because (as I said since the beginning of the semester) I consider the syllabus to be a written contract between the class and myself.   The posted grades also show the averages for all work.   You can look at the grades to see exactly where you stand relative to all of your classmates both classes.   If you have any questions, you are welcome to come to see me next semester and if there are any mistakes, I will of course make any necessary corrections.   I was actually very happy to see how hard you all worked.   

Here is the Final Exam Answer key for the General Chemistry Lecture with points taken off for common mistakes.   See you next semester.   posted by Dr. Hahn from 312 Lancer  Dr. / Columbia, SC   on 12/16/12 at 3:30 pm

For both the Lecture and Lab Students:   I am still making up the final exam for the General Chemistry I Lecture students.   I still have about a 14 " stack of lab finals, last lab reports and lecture take home quizzes which I am still grading.   So I have not really made a whole lot of progress in assigning your final grades.   posted by Dr. Hahn  on 12/3/12 at 1:30 pm from LSF 303H

General Chemistry I Fall 2012  Lecture Information (below)

One of the students said at the final exam yesterday that the deadline for the "Mastering" is midnight 12/6/12 (the date of our final exam).   I couldn't remember so I said that the deadline sounds about right.   Nope.   The deadline for the "Mastering" was around noon of 12/6/12 (the date of our final exam).    In any case the "Mastering" was posted on the syllabus since late August.   I have been assigning "Mastering" assignments since late September / early October.   I have just been moving the dead line to later and later dates until all the "Mastering" ended up due the date of the final exam.  

I have a deadline for assigning grades.   I am unable to move the deadline for the "Mastering" to a later time.   There are seniors who need to have grades submitted in order to graduate.     I have people depending on me submitting grades.   The final deadline for "Mastering" was yesterday.   The final deadline is passed and no one will be able to submit any more "Mastering" assignments.   If I keep accepting late work, I will not be able to submit grades by the registrar's deadline.  

posted by Dr. Hahn at 12/7/12 Friday from her FMU office

*************

I have moved the deadline for all assignments on the "Mastering" to the final exam date because a few of you emailed questions about it.   Just don't spend all your time working on that at the expense of studying for you final exam.   

Don't forget to come to the final exam with a calculator.   I am making up your final exam now.   In general the final exam will be testing you on being able to do things (for example like conversion from things like grams or mL to moles, atoms, stoichiometry, etc, VSEPRT, Lewis Dot Structure, electron configuration) and not on memorizing little piddling facts.     So far I  have 26 MC questions (3 from new material and the rest from E I, E II, E III)   posted by Dr. Hahn at 9:15 am 12/2/12 Sunday from 312 Lancer Dr. / Columbia, SC

Here is the Q VII  (take home quiz) answer key and blank form.   The Final Exam for the 8:30 am T,R Gen Chem I Lecture is at 8:30 am to 10:30 am on 12/6 R in LSF 301 (same room as all semester long).   The Final Exam for the 9:55 am T,R Gen Chem I Lecture is at 3:00 pm to 5:00 pm on 12/6R in LSF 301 (same room).   Please study (limited time) {[old exam + take home quiz] ---  old quizzes  ---- examples from lecture notes}(more time).   Good luck studying for your final exams.   Dr. Hahn posted at 12:00 noon on 11/29/12

******************

Info Useful for doing the take home quiz.   Please note the deadline for turning in the take home quiz.   If you are turning in the quiz in class, it is due 15 minutes after the start of class.    If you are turning in to my turn in box or under the door of my office LSF 303H, then you need to turn in by 8:20 am (8:30 class) or 9:45 am for the (9:55 am class).   I will be giving you the answer key after the first 15 minutes of class so if you turn in the quiz after I have already handed out the answer key, the quiz will be worth zero points.    The deadline is written at the top of the quiz itself.  

For first question  #4 on page 3 for both the 8:30 and 9:55 class you may want to look at figure for 1,2-dichloroethene (your question has H instead of Cl) p. 425 and fig at the bottom of  page 427 (for C₂H₂)

If you would like to use the free 3D drawing to help you visualize the structures (for the VSEPRT), it is at  http://www.chemagic.com/web_molecules/script_page_large.aspx?rid=    (a) click on "molecular editor" (b) select "Draw" at the bottom.   (c) draw your molecule in the empty space (select atoms on the and choose single, double or triple bond (d) choose for Load 3D, NIH  (e) use left mouse to move the molecule (This is just to help you understand the structure.   There are no points for using this visualizing technique.)

Please note that the Final Exam will be approximately 1/3 MC, 1/3 SA and 1/3 LA.  The MC part of the final exam will consist of a selection of the exact MC questions from Exam I, II, III (for your section of the lectures, meaning  8:30 MC EI,EII, EIII will be on the 8:30 MC of final exam).   I will only choose about 1/3 of the MC for EI, etc.   This does not mean that question # 4 on your Exam I is the same question as question #4 on the final exam.   This also does not mean that if the answer to question #4 was (b), that the answer to the same question asked in question #4 will have (b) as its answer.   I will scramble both question numbers and letter choices.   The Final Exam will be given on the date noted in the syllabus.   posted by Dr. Hahn at 11/27/12 at 10:30 pm from 312 Lancer Dr.

Here are the Exam III Key & blank forms.   posted by Dr. Hahn on 11/17 Saturday 11:50 am from 312 Lancer Dr. / Columbia, SC

********

I have posted the key to Exam III outside LSF 301.   I will post EIII here as soon as I scan in the blank form (probably tomorrow).   I have just started grading the exam and I will probably not be done grading by our next class period on 11/20 T (before Thanksgiving).   Please note that our next and final quiz is on 11/29R.   This Quiz (QVII) is a take home quiz which (according the dates on the syllabus since the beginning of the semester) is to be turned in on 11/29 R.   This means that I will hand out the take home quiz on 11/27 T.   On both 11/20 T and 11/27 T, I will be covering the last little bit of chapter 9 and chapter 10.   If we are on schedule in covering material in chapter 10, then 11/29R will be a review day.   I will probably collect QVII and give you the answer key for Q VII in the first 30 minutes of the 11/29R class period.     Yes there is class on 11/20T because it is a scheduled class period and I do need to cover all of chapter 10 before the end of the semester so that we end the semester having covered all of the material covered by all of the other sections of General Chemistry.   As stated before our final exam will be on the dates stated on the syllabus.   I have not changed anything about the syllabus because I do not believe in yanking the rug out from under my students at the last minute to save myself a few hours of grading time.   (I'll just go sleepless in the last week of classes instead : ) posted by Dr. Hahn at 11/16 F 10:10 am from LSF 301 at FMU

Here is the Quiz VI answer key and blank form.    Sorry for the delay in posting it online.  I did post the hardcopy of the key by LSF 301 around 11:40 noon today though.    Please study both Quiz V & Quiz VI for Exam III (11/15).  You should especially study Quiz VI because it has a lot more material than Quiz V.    I will provide the Lewis Dot Structure handout with Exam III because we just covered Lewis Dot Structures and I realize that it takes a little bit of time to memorize and digest something like that.   It will be attached to Exam III just like the periodic table.   Please come to the exam with a calculator.   I will not allow you to use a cell phone as a calculator during either Exam III or the Final Exam.

Exam III will cover Chapter 7, Chapter 8 and parts of Chapter 9.   Please note that my exams always only cover material which I discussed in class.   If the book spent pages covering something, if the "mastering" spent a lot of time covering something, if I did not mention it in lecture, you are not responsible for the material on the exam.   I suggest  making sure that you understand the examples which I covered in lecture.    However even more important than that is making sure that you understand and can do the material on all 4 forms of Quiz VI and all 4 forms of Quiz V.   Good luck studying for the exam.   Please come to lecture on 11/13 with questions about any material which you think could be on Exam III.   Dr. Hahn    posted 9:40 pm 11/8/12 from 312 Lancer Dr. / Columbia, SC

Here is the Quiz V answer key and blank form.    I have also assigned "Mastering" for Chapter 8 and 9.   I will probably give you credit for attempting to do all chapters of mastering.  

Please note that my syllabus states that if you miss an exam or quiz without a documented excuse, you will earn a zero on the quiz or exam.   If you have a valid documented excuse (doctor's note,  representing the university in an official capacity, etc., run the excuse by me), for the quiz, I only average and plug in.   If you miss an exam with a valid excuse, I will either (your choice) (a) average and plug in or (b) I will make up an exam different from the exam which I gave everyone else and I will have to give you this exam at some mutually convenient time.    (average and plug in means:    missing E III grade / your average all Exams  =   class ave E III / class ave all Exams)  

You will need to provide the hardcopy documentation for me to keep in my files by 11/29/12 Thursday (the last day of classes).   Just showing me the excuse is not sufficient.   You must give me the documentation for me to keep in my files.    Please note that if someone tells you that I, Dr. Hahn, said that if you miss an exam there is no penalty, they are outright making up a lie.   Without documentation acceptable to me, it is a zero on the missing quiz or exam.   The way that anyone can easily get an F on a class is to just miss a bunch of exams without any kind of excuse.  (Please do not figuratively "shoot yourself in the foot".)  If you missed an exam with some sort of excuse, you had better come see me (or email me) ASAP.    I did not receive emails from the few students who verbally said that they emailed me about missing the last exam.   (You should email me at my official JHahn@fmarion.edu email address because this is official university business email.)   I don't really want to give a bunch of people an F because they mistakenly thought that missing a bunch of exams is no big deal.    Also note that the syllabus allows you to drop your 2 lowest quiz grades but there is nothing in the syllabus for  dropping exams.  One exam also count the same as all of your quizzes combined.  I also do not lend my lecture notes to anyone who misses a class.   I do not give the lecture individually for students who miss lectures.   You will need to get lecture notes from one of the other students in your class who was in attendance.   You can ask me questions about the lecture during my office hours (as can any other student who was actually at the lecture) after having gotten another student's lecture notes.     posted by Dr. Hahn from 312 Lancer Dr. at 11:36 pm, 11/7/12 W

**************

Here is the Exam II answer key and blank form.   posted by     Dr. Hahn from     LSF 303H    3:20 pm 10/22/12

********

Please Note that the most important thing to study for Exam II is the material on Quiz III and Quiz IV.   posted by Dr. Hahn  (while making up your Exam II) at 10:50 am 10/17/12 from LSF 303H

***************

Quiz IV answer key and blank form   

I posted the midterm grades for freshmen by taking your quiz average and multiplying by 5 (giving a percentage of 100) and taking your exam I grade and multiplying by 3 (giving a percentage of 300 pts).  Your midterm grade was a percentage of 400 pts.    The grade distribution for the midterm is pretty standard (90-100 A, 85-89 B+, 80-84 B, etc.)   Please note that I did not have your lab grades to input into the midterm grade.  In most cases, including a lab grade should help your average (unless you are one of those who is not attending labs and not turning in anything).  I also did not include your attendance extra credit in your midterm grade.   If you have questions or concerns, please make an appointment to talk to me.

Exam II will cover all material since Exam I (Exam I covered all of chapter 3 except for balancing chemical equations and composition of a compound by % mass)   Exam II will start with chapter 3 (including only balancing chemical equations and composition of a compound by % mass) and will end with the end of chapter 5.   I will return your graded Quiz IV on Tuesday.    I will cover the last part of chapter 5 (for 8:30 am class:  partial pressure of water, stoichiometry of gas, and kinetic molecular theory          for the 9:55 am class:   last part of kinetic molecular theory).  

On Tuesday 10/16, any time left after covering the last part of chapter 5, I will use as a review session for Exam II.   Please come with any questions about material to study for Exam II.  

very important:   Please make sure that you can do all of the material on Quiz III and Quiz IV.  You can print out the blank form of QIII and QIV and work the problems without looking at the answer key and then grade yourself.  

less important:   Please do the mastering in chemistry problems for chapter 4 and chapter 5 to help you practice for the exam.   Because you are not yet familiar with using "mastering" at least for chapter 4 and chapter 5, I will give full credit for attempting to do the "mastering".   I heard from some of you that "mastering" was being very finicky about grading.   So use all the hints and just do the "mastering" even if you lose points to complete the problems.    

Good luck studying for Exam II and I hope that you do really well on Exam II.   posted by Dr. Hahn on 10/13 at 12:20 noon

***************** 

Here is the Quiz III answer key and blank form for the 2 sections.  

Here is the Exam I answer key and blank form for the 2 sections.    Sorry for the late posting.   I was really busy with all the grading and exam/quiz making.  

Please note that I have posted the "Mastering in Chemistry" homework problems so please work those problems for chapter 4 & 5.   posted by Dr. Hahn from her parent's home in Columbia, SC at 11:05 pm 10/6/12

Here is the Quiz II answer key and the blank forms for the 2 sections (2 forms in each section).   I will return the graded quizzes and your answer key in the next class period.   posted by Dr. Hahn on 9/15/12 at 8:50 pm from her parent's home in Columbia, SC

Here is the Quiz I answer key and the blank form of the quiz for the 2 sections (2 forms in each section).   I will have the graded quizzes and your correct answer key in the folders next class period.    Please check for errors and then keep the quizzes and answer keys to study for the exam.   posted by Dr. Hahn on 9/10/12 at 9:20 pm

Here is the periodic table showing which of the elements you do not need to learn the symbols for this class.   I want you to learn the symbols, not the atomic mass number or the atomic mass, just the symbols.   The symbols are mostly obvious (ex:   S for sulfur, O for oxygen, etc).  posted by Dr. Hahn on 9/10/12 at 11:16 pm

Here is the Syllabus for the General Chemistry I Lecture (T,R 8:30 am to 9:45 am and TR 9:55 am to 11:10 am LSF L301).   Please note that our first quiz is scheduled for 9/6 R in the last 15 minutes of the lecture.   My first quiz is nicknamed the "confidence booster".    Please bring a calculator to that quiz.

posted by Dr. Hahn at 8:50 am 9/3/12   

#############################################################################################  end Gen Chem I Lecture Fall 2012

General Chemistry I Lab  Information Fall 2012 (below)

Lab Final Exam is this week.   11/27 T, 11/29R and 11/30 F at the normal times.   Please come with a calculator.   I will not allow you to use a cell phone as a calculator during the exam.    The absolute final deadline for you to turn in documentation for any missed labs is 12/6 Thursday.   If you turn in nothing by this final deadline, you would have earned a zero on any labs which you did not perform.    posted Dr. Hahn at 11/27 T at 10 pm from 312 Lancer Dr.

For the Carbonate to Chloride lab, my question # 2, I gave a conversion factor which erroneously says 22.4 ml / mol.   The actual conversion factor should be 22.4 L / mol.   posted by Dr. Hahn at 10/13/12 at 3:40 pm

The directions for using "Logger Pro" is on page 91 of your lab book.   If you attempted and had a lot of problems plotting using Logger Pro, please at least plot the data using a hard copy graph paper.   equation is    y = mx + b   (y = grams solid, x = mL volume, slope = density)  For Part II, you have measured 10 (or 20) piece mass and then volumes for 2 (or 4), 4 (or 8), 6 (or 12), 8 (or 16), 10 (or 20) volumes meaning that you then have to calculate masses for each of your volume data points.   [mass for 2 (or 4) , mass for 4 (or 8), etc....]   

Please come to the lab with safety glasses and wearing shoes (not sandals).   We are working with a fairly large amount of acid in this week's lab and we are even heating the acid to evaporation.       posted by Dr. Hahn at 9/10/12 at 9:30 pm

Here is the Syllabus for the General Chemistry I Lab (T 12:45 pm - 3:45, R 12:45 pm - 3:45, F 12:30 pm - 3:30pm).    posted by Dr. Hahn at 9:50 pm 9/3/12