****************************************************** Fall 2021 semester (at the Citadel) General Chemistry I Lab CHEM 161: (My position at the Citadel is teaching only. I will not be doing any research at the Citadel. Further down below website is just my old websites from my old positions and have nothing to do with the Citadel. I am also not either an undergraduate or graduate student at the Citadel.) M section 1: 3:00 to 4:50 pm Byrd 207 (CRN 15594) (18 students)
M
section 3:
1:00 to 2:50 pm
Byrd 207 (CRN 15576)
W section 10:
1:00 to 2:50 pm Byrd 207
(CRN 15583) Final Grades: I submitted final grades this morning. I did exactly what I said I would do. Excused absences were replaced by the equation (Missing Lab report 1) / (your own average lab reports) = (class ave lab report 1) / (class ave all lab reports) I did notice that in Canvas the "excused" grade and inputting the average made almost no difference in grades so in the future I would not bother doing this. (I always takes a lot of time to do this because I have to do it manually and a lot of people were on quarantine/covid during the semester so there were a lot of "excused" grades. I also dropped one lowest lab report grade and one lowest lab quiz grade as it states in my syllabus. I also input 50% grades for anyone who attended lab as evidenced by signing into the class roster but turned in no lab reports. In my syllabus you earn 50% of the lab grade by actually doing the lab. Because of the extended late deadline, almost no one earned a zero for missing labs. I don't know that I would ever do it again because it is pretty painful to grade late lab reports until the last minute. I did not enjoy that at all. A few of you earned a bunch of 50% grades because you still had not turned in lab reports by the end of the extended deadline. The final average for the combined sections came out to 92.5%. Almost no one had zeros which did not drop because of non attendance. At midterm the average of all sections was 85% if I included zeros for non attendance or for not submitting a lab report. At midterm the average with out the zeros had been 89%. All grades are posted in Canvas. I exported the Canvas grade so I have a copy of the Canvas grade which I have on my laptop. If you see any errors, feel free to email me. If I made an error (I did some 70 students grades with some 30 individual graded stuff per student - or 2,100 individual grades), let me know and I will correct the error. Have a good holiday. Dr. Hahn from my parent's Columbia, SC home at 9:15 am 12/17/21 Friday Expt 10: Molecular Polarity Lab Here is the video of the actual Lab Class on Wednesday 11/17/21 at 3 pm section. https://1drv.ms/v/s!AtMCcaDAH2NEjQ2S1zPTeXC-9dXg?e=ndiPOk posted by Dr. Hahn on 11/18/21 at 8:30 am from her parent's Columbia, SC home. I just want to also point out that I am only on campus from around 11 am to a little after 5 pm on only Monday and Wednesday. So I am sitting at my office Byrd 318 from only around 11 am to 12:40 noon and after the end of the lab until I finish inputting your CAS attendance (which can only be input on the day of the lab and only by using an on campus computer). The rest of the time I am in Columbia, SC. If anyone turns in any late lab reports under the door of Byrd 318, I would count that as not having been turned in because I can almost guarantee that I would not get it. Byrd 318 the outer office is where my desk is located. Byrd 318 has an inner office and a lab. 2 dofferent other faculty are in the inner office and the lab. Also because I am there only for all of maybe 4 hours a week (while waiting to teach and after getting out of teaching and on my way out), it would be very reasonable for anyone to use my desk, desktop and printer while I am not there. So if you leave your lab report for me to get by sliding it under the door of the locked office door, there is no telling where it would end up. I am never there with the door closed anyway. Even if you leave the lab report on my desktop, it would be sitting on the desk for a really long time with other people (not myself) probably using my desk. Any turned in report could very well disappear. I found someone's lab report on top of my desk one time and no one seemed to know to whom it belonged. Also if you want to see when I am there, I have a logsheet under the door label of Byrd 318. I am only on campus when I am logged in and I am never on campus when I am not logged into the log sheet. posted by Dr. Hahn on 11/18/21 at 8:43 am from her parent's Columbia, SC home Because the faculty teaching the General Chemistry lab are taking turns making up prelab, I was assigned to do the prelab talk for the Molecular Polarity Lab (Experiment 10 - going on from 11/15 M to 11/18 R) I posted my material into Canvas for the other Chemistry Lab instructors. I am going to go ahead and post the material here (as well as into canvas) for my students. Here is the video link https://1drv.ms/v/s!AtMCcaDAH2NEjQsMt4qmOdJEDw0e?e=YG1ohZ Here is the link to the lab report form posted by Dr. Hahn from her parent's house in Columbia, SC on 11/9/21 Tuesday at 9:24 pm Expt 9: Lewis Dot Structure Lab Here is the link to the recording of the lab lecture on 11/10/21 Wednesday in my 3 pm section. https://1drv.ms/v/s!AtMCcaDAH2NEjQzXrtgAdvoPLxJY?e=oBgfxy posted by Dr. Hahn on 11/11/21 Thursday at 8:23 am from her parent's Columbia, SC home
Here is the recording of the lecture on 11/3/21 Wednesday in my 3 pm section. It has a lot of useful information for answering the lab report form. Especially the latter half has a lot of help in answering the lab textbook questions. https://1drv.ms/v/s!AtMCcaDAH2NEjQo07usEtX5XBZ0b?e=yrDszu I actually answered more of the lab textbook questions than I answered in my other sections because some students pointed out some of the multiple parts of the questions which I did not answer in earlier sections of the lab. posted by Dr. Hahn on 11/4/21 at 9:30 am from her parent's Columbia, SC home
Here is the video of the lab class on Part I of the Handwarmer Lab https://1drv.ms/v/s!AtMCcaDAH2NEjQibTYMdAjML88a9 Here is the lab report form which I handed out for my Wednesday class. Note that the lab report form (first page Part 2 - specific heat capacity of a huma hand) (I am writing all of my lab report forms this semester) that I handed out to my Monday class (on 10/18/21 because of Leadership Day ) did not have a blank for T(initial of ice water) because the lab textbook (I did not write the textbook) did not ask you to record the T (initial of ice water). So the DT of the sausage should be = T(final of calorimeter) - T(ice water) and DT of the water should be = T(final calorimeter) - T(initial calorimeter). There are 2 general types of calorimettry problems. (type I) is where you add something cold (sausage) or hot to the calorimeter. For this type of problem, you need to have the initial temperature of the cold or hot object that you add to the calorimter (type II) is where you do a reaction inside the calorimeter. For this type of calorimetry experiment, the temperature of the reaction (calcium chloride dissolving in water) is the same as the temperature of the calorimeter because the reaction is occuring in the solution and you can't measure the reaction without the solution. It is just that one loses heat (CaCl2 exothermic reaction) and the other gains heat (the water in which the reaction is being done). I got yelled at again by the guy who sets up the lab at 5 minutes before my 1 pm class and 5 minutes before my 3 pm class on 10/28/21 Wednesday. It is only because I am a pretty sturdy person that I was not a blubbering crying mess as I taught my classes on Wednesday. He said that there was Calcium Chloride on the balance pans and a watery mess in the balance room after my Monday 10/25 lab classes. I had literally wiped down every balance pans with a dry paper towel at the end of my Monday 10/25 lab classes. Because the guy who sets up the lab had complained about the "watery mess" after my 10/18 Monday lab. I had not left a mess because I ALWAYS check my entire lab room at the end of my lab class. My Monday class had NOT left a mess in the balance room anyway to begin with on 10/25 . There was a little bit (maybe 4 pellets in the entire balance room even before I cleaned up) of calcium chloride near the balances and one calcium chloride pellet on ONE balance pan even before I wiped down the balances. After I wiped everything down, I took cell phone photos and emailed it. I would not have taken a photo and emailed the photo if there was a watery mess in the balance room. I had not taken a photo of every balance pan however. However there was absolutly nothing on the balance pans because I wiped down all the balance pans with a paper towel myself. At the end of my Wednesday lab, one balance did have a little bit of Calcium Chloride spill so I did have my students help me clean that up. Then I myself wiped down every balance pan with a paper towel. This time I took photos of every balance pan. There was absolutely nothing on any of the balance pans. So you might wonder perhaps if I took on research students I can have my research students help me wipe down every balance pan instead of doing it myself. Actually when I was a tenure track professor elsewhere and had research students who were being paid by my research grant (not under some other professor but with me as the professor in charge with no other professor), I spent a lot of time actually cleaning up glassware that my own research students had left without cleaning. Only someone who maybe stole someone else's research to get a doctorate and/or who knows nothing about research would think that doing research with students is easier than teaching students almost anything in a classroom. . posted by Dr. Hahn on 10/28/21 Tuesday at 10:10 am from her parent's Columbia, SC home ****
Rocket Lab Here is the video of the prelab lecture (Wednesday 3 pm section) for the "Rocket Lab" https://1drv.ms/v/s!AtMCcaDAH2NEjQIvTFTUa5etB1vU ClassData Here are the data for my 4 sections. You may make conclusions based on the combined all 4 section data or just on your own section data. In my Wednesday at 3 pm section class everyone snippped their rocket to NO STEM. I fixed the 2:5 ratio people's rocket (~ 1/2 cm stem) but everyone else had the NO STEM rockets. None of the NO STEM rockets worked. I filled the NO STEM rockets myself so I am sure that the gas filling was done correctly. (My Wednesday 3 pm section also had almost no yeast solution left so the guy who sets up the lab came into lab about 30 minutes before the end of the lab class and refilled the yeast solution. I think we had enough yeast for those who filled their oxygen into their rockets so I don't think that was the reason for the rockets not launching.) I am sure that it is the fact that the rockets had NO STEM that resulted in the no launch results. My guess is that the NO STEM resulted in the oxygen falling out at same time as it was being filled so the rockets had a lot of air and not a lot of the reactive gases in the rocket. I know the students in my Wednesday section did do the lab and worked hard except for not following the directions and picture on page 48 of the lab textbook. NOTE: I even had the little rocket on the little document camera almost my entire prelab lecture with the correct size of STEM. I am not sure I understand why the entire class decided that the little sample rocket on my document camera was incorrect and they should all snip the rocket all the way to NO STEM. I have to admit the Canvas prelab picture (pdf not powerpoint) shows a really long stem which does not match the picture in the lab text. I am guessing the prelab lecture picture is from several earlier editions of this experiment ? This is my first semester teaching this lab so I don't know who took that picture of the rocket with something like a 5 cm stem. It may be from a couple of years ago but certainly before the most recent edition of the lab text. All of the instructors teaching the General Chemistry lab this semester are taking turns making up the Canvas prelab material. I am supposed to do the prelab material and the prelab quiz for Experiment 8 and Experiment 10. [I moved my prelab lecture to Byrd 101 because Byrd 207 has banks of very large windows and I was using my personal $100 computer projector to zoom the class for people on quarantine. Because my computer projector had very low lumens, I was unable to see anything without covering up all the windows (I used garbage bags). I was asked to remove the garbage bags from the windows (by the guy who sets up the labs) so then my computer projector was not working in Byrd 207 which is why I am now doing the prelab in Byrd 101. ] posted by Dr. Juliet Hahn on 9/30/21 at 7:35 am from her parent's Columbia, SC home ********
(a) for item # (6) on your lab report form for full credit (10%)
attach plot, you may just print out the excel spread sheet for your
class section (I have the pdf as well in case you don't have
excel.) Play around with it as you have time to learn how to do the
excel plot. To do your own plot, select the
first column (x axis), push down control (ctrl) key
and select the y axis (450, 525 or
600 nm column) do insert scatter plot
right mouse anywhere on the plot and select "select data"
in "legend entries series" - edit to give title OR add a new line
to your plot
give title on first space, in second space - click on second space
and the select the x axis column - click on 3rd space (erase
anything that is already there) and select a y axis column
(b) for 5% extra credit which can be applied at the end of the
semester to one prelab quiz or one lab report form, complete the
partially completed excel at the bottom of the excel spreadsheet on
the one that has the green and red trendline. The directions are
given on the excel spreadsheet.
https://1drv.ms/v/s!AtMCcaDAH2NEjQFVqLUpE1zBnm-x (note in the reading of the buret: there is a "writo" in the numbers. It should be 7.31 and 0.21 resulting in a volume added of 7.10. I changed the number a couple of times by adding a portion of the number and then misread my own modification to the number) Here is the link to the video of the lab lecture. Note that because the guy who sets up the lab said that I was not allowed to use window coverings in the lab room, I am now going to hold the prelab lecture in Byrd 101 for the rest of the semester. (what is the problem with the window covering - my personal small projector that I was using in the lab room is inexpensive and does not have enough lumen to be visible in a room with a lot of light and Byrd 207 is the only lab room with a bank of windows with no blinds) NOT have a lab book does NOT excuse you from reading the lab book nor does it excuse you from answering the lab questions. I posted the lab book on canvas for the first few weeks. It is still there. I emailed you that the lab book is there. Not having access to the lab book despite it being posted in canvas, just indicates that you are expecting to be just given a grade. That is NOT going to happen. If you expect this to happen, you will be sadly disappointed (with a really bad grade). I am going to remove the link to the lab book soon because you should buy a lab book soon Note that I gave all the answers to the questions in the questions on my own version of the lab report form in my prelab lecture. So if you had paid attention to the prelab lecture, you would already have all the answers. Dr. Hahn's Version of Lab Report Form posted by Dr. Hahn on 9/23/21 at 9:27 am from her parent's Columbia, SC home *************** Names Lab: for video of Names Lab click on link https://1drv.ms/v/s!AtMCcaDAH2NEjQCHE-kDREP0kf-b for those of you in section 3 (Monday at 1 pm, my section) who did not get to Round 6 and anyone on zoom who wants to submit a lab report, here is the document for the Names Lab Report posted by Dr. Hahn on 9/18/21 at 10 am from her parent's Columbia, SC home (note: I had a technical glitch so my website was down for about an hour)
https://1drv.ms/v/s!AtMCcaDAH2NEjF2_4Du0PYzBc3d9 (here is my first week's class ) including safety quiz answers posted by Dr. Hahn on 9:25 pm 9/4/21 from her parent's Columbia, SC home ********************************** I was scheduled to teach Summer II at the Citadel but the class was canceled. I found out a few days ago that the enrollment needs to be at least around 20 students for the school to not lose money running the class during the summer. I don't know when they canceled my Summer II class at the Citadel. During Summer I, I taught a class CHT 224 - current topics in industrial chemistry at Aiken Technical College. The class that I taught is a part of the nuclear fundamentals certification program at the Savannah River Facility. CHT 224 is a class with security concerns. I found out a week into teaching the class that it would have been a security risk for me to post class contents on this website. The students are technicians who will go on to work in the nuclear facility at Savannah River. I still see my name attached to the canceled lab but not the canceled lecture although I was supposed to teach both in Summer II. I am not teaching any classes in Summer II at the Citadel (lecture or lab). A student emailed me at the beginning of Summer I if I would be able to independently teach a lab during Summer I after the Intro I Lab was canceled. (My name was never attached to the Intro I lecture and lab for summer I. They asked me to teach that Intro I lecture and lab about a week before they canceled the class. I asked to teach Summer II instead). I told the student that since I live in Columbia, SC with my parents, I would not make enough money to be able to teach a lab teaching one person. It almost sounded like a research type of interaction because the person somehow thought that I would be teaching just one person a lab without getting paid. In fact it would cost me money because I would have to drive 2 hours one way (or 4 hours in and back) to teach a one person a lab 2 days a week. I actually do work for pay. I am not teaching because I enjoy hanging around on campus. I can find lots and lots of things to do with my time for no pay that would not involve me driving my car into the ground. It is kind of odd but before Spring 2021, they kept putting my name on all sorts of classes without telling me. Maybe they just needed some name to put by a class ? I would look at the college course schedule and my name would be listed by some other class every week. Nobody told me that I was teaching that class, my name was just attached to multiple classes at different times. Maybe the administration just likes my name ? Maybe students like to sign up for a class with a name attached but not for some class taught by "someone" ? I am in general a very popular teacher. I think I am a popular teacher because students know that I am a good person with integrity and that I will just do my best to teach them. I never try to exploit my students and my students know that. A lot of professors think students (& people) are too stupid to know when someone is trying to exploit them but people are actually a lot smarter than you may think. I am not just a popular teacher, I am an excellent teacher. I also managed to get almost full retention of students [retention meaning: almost no unsuccessful completion of the class due to either low grades (D or F) or dropping class before the end of the semseter ] with comparable student scores on a common end of semester assessment test to other sections. Other sections (of a multiple sections of a General Chemistry I Lecture for major students at Presbyterian College) had drops of around 25 to 30% with about the same end of semester assessment scores. teaching evaluations posted by Dr. Juliet Hahn 7/9/21 at 10:56 am from her parent's Columbia, SC home I am really tired although I could have gone on to teach summer II. I am going to take it easy and relax for a while. Citadel Old Stuff ************************** Classes Teaching at the Citadel Summer II 2021 Intro to Chemistry II Lecture (CHEM 104 section 91) MTWRF 8 to 8:50 am Byrd 301 Intro to Chemistry II Lab (CHEM 114 section 91) MW 13:00 to 14:50 Byrd 211/Byrd 204 June 28 to August 13, 2021 Classes Teaching at The Citadel Spring 2021 Introductory Chemistry II Lecture 9 to 9:50 MWF Byrd 108 (23 students) Introductory Chemistry II Lab Monday 1 to 2:50 pm Byrd 211/Byrd 204 (19 students) Introductory Chemistry II Lab Monday 3 to 4:50 pm Byrd 211/ Byrd 204 (18 students) Introductory Chemistry II Lab Wednesday 1 to 2:50 pm Byrd 211 / Byrd 204 (17 students) ************************************************************************************************ Intro II Lecture Spring 2021 PowerPointChapter 9 (organic) PowerPointChapter10 (polymer) (posted by Dr. Hahn on 2/23/21 at 4:20 pm from her parent's Columbia, SC home) PowerPointChapter20 (household chemicals) (posted by Dr. Hahn on 2/23/21 at 4:20 pm from her parent's Columbia, SC home) PowerPointChapter16-(Biochemistry) [posted by Dr. Hahn on 3/18/21 at 8:30 am from her parent's Columbia, SC home] PowerPointChapter18 (Drugs) [posted by Dr. Hahn on 3/29/21 at 11:20 pm from her parent's Columbia, SC home] PowerPointChapter17 (Nutrition) PowerPointChapter19(Agriculture) [posted by Dr. Hahn on 4/8/21 at 12:46 pm from her parent's Columbia, SC home] PowerPointChapter21 (Poisons) [posted by Dr. Hahn on 4/21/21 at 9:29 pm from her parent's Columbia, SC home] PowerPointChapter13 (Air) (posted by Dr. Hahn on 4/24/21 at 11:22 am from her parent's Columbia, SC home) PowerPoint-SummaryOfSemester(all Homework only with answers) (posted by Dr. Hahn on 4/26/21 at 4 pm from her Citadel office) AnswerKeyTest3 posted by Dr. Hahn on 4/24/21 at 4:38 pm AnswerKeyQuiz5 and Quiz6 posted by Dr. Hahn on 4/24/21 at 4:38 pm AnswerKeyTest2 posted by Dr. Hahn on 4/24/21 at 4:38 pm from her parent's Columbia, SC home Answer Key Quiz 3 and Quiz IV posted by Dr. Hahn on 3/7/21 at 8 am from her parent's Columbia, SC home Answer Key Test 1 posted by Dr. Hahn on 3/7/21 at 8 am from her parent's Columbia, SC home Answer Key Quiz I, Answer Key Quiz II posted by Dr. Hahn on 2/7/21 at 8:06 pm from her parent's Columbia, SC home *********************** Here are the stats for the course this semester for my section of the Intro II Lecture class. Quiz average (after dropped one lowest grade quiz out of 6 total quizzes) = 84.4% Test average (after lowest Test grade replaced by final exam grade) = 91.7% Final Exam average = 90.5% Final overall average = 90.4% I did submit my grades on time but then I got very busy starting to teach a summer class at Aiken Technical College. I got a few recent emails requesting final grades so I am sending everyone detailed grades for every single thing which you earned grades (as promised at the end of class - just a little late). posted by Dr. Hahn on 5/27/21 at 9 am from her parent's Columbia, SC home ********************* (None of the below zoom lecture links work because the Citadel deletes zoom recordings after one month and all of these are more than a month old. I actually thought that I could keep the zoom links working by re-putting it in manually into my zoom file because that is what one of the zoom adminstrators told me but they just auto disappeared without me knowing about it.) 4/26/21 Monday Lecture class (posted by Dr. Hahn on 4/26/21 at 3:50 pm from her Citadel office https://citadelonline.zoom.us/rec/share/uUfHQtEgcccTCx4ZwLm5rSrstnEyJ0xS1S5ehurwxqsr54L21AbvCY8PVn91SbSm.aQU4CUB8zpDIPAMv ********** 4/23/21 Friday Lecture class (posted by Dr. Hahn on 4/24/21 at 11:10 am from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/qi46aOwG_4o1JUzXY_AklH_rTV2BF1N9tDBJFGUM-I6o9LvkvdXA2yf2bBr0facS.KitAhmyfcUG4TVwS ********** 4/21/21 Wednesday Lecture class (posted by Dr. Hahn on 4/21/21 Wednesday at 9:25 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/7LeIgrA3AzhaM_z0RiJKFv6E45SO2td8f2Ioijo4_9Z8SNLO9zr5Tlp_qU3HS6A2.p8hZwhpRmyCHkAH9 *********** 4/19/21 Monday Lecture class (posted by Dr. Hahn on 4/20/21 Tuesday at 2:50 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/5I4YOJwkoDFhAHa0X-DC0SemWycJGn7frKdfBoGi_3PnjZ4cTbAbhNT8tO2UCNw.YPNiArJxwYgsMncB ********* 4/16./21 Friday Lecture class (posted by Dr. Hahn on 4/16/21 Friday at 1045 am from her Citadel office) Since the test was on Wednesday (4/14), there is no need to post that zoom class. https://citadelonline.zoom.us/rec/share/U7farigiog2PxgaQHW7r_S2sW7PNYXZkF5Rc5OYc0tZX7djuRqatPUYOKK20BN3J.xVfwgHqJi9Y8MkUS *********** 4/12/21 Monday Lecture class (posted by Dr. Hahn on 4/13/21 Tuesday at 12:20 noon from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/b3Qv5lmCkyktbp_twXdXKzhHEGXt5TypC13K4ID00-q6Y8O-7uLiyK0HnZNrmKQu.3IsmOaq1a18vO0x0 Test 3 covers Chapter 16 (2nd half), all of Chapter 18, all of Chapter 17 and all of Chapter 19. (HW 16.4 to HW 19.3) You will be able to use the homework during the test because this is a non science majors class and there is a lot of unfamiliar terms that otherwise would have to be memorized. ********** 4/9/21 Friday Lecture class (posted by Dr. Hahn on 4/9/21 Friday at 11:30 am from her Citadel office) https://citadelonline.zoom.us/rec/share/Y1hIySMNQks3W-T06Vvl8jleF9U7BZfwX0BqKWfLXGAKkgUKLEfZcrlyJ_n969qa.0zrYWmNrS7Hb1O-q ********* 4/7/21 Wednesday Lecture class (posted by Dr. Hahn on 4/8/21 Thursday at 8:10 am from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/Jv5AH2D3chr2PoKkjWNwhJ0aKq03kf1OUhgPSGG8t3d7yi4uY24IONeNR_JjVs0h.np-sCAEBKlxdVeW8?startTime=1617800556000 ****** 4/5/21 Monday Lecture class (posted by Dr. Hahn on 4/8/21 Thursday at 8 am from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/fY8I5qMp8xdg3UQ-iyYVZSNLLK_rfILPWSCCs4mIFHy6gIh17uAeNOITPiCsTWCa.dUD_HROBZjC0Q87M?startTime=1617627791000 ************ 4/2/21 Friday Lecture class (posted by Dr. Hahn on 4/2/21 at 10:50 am from her Citadel office) https://citadelonline.zoom.us/rec/share/IFvFCxqMmjjeT30DHjgjVRCX2iiUSfwGzqy-6Tx0cbNIcad8ahr7oPbqjN-6d1QB.FerSrb203TX8mOYF?startTime=1617368859000 ********** 3/31/21 Wednesday Lecture class (posted by Dr. Hahn on 3/31/21 Wednesday at 9:25 pm from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/FLL2yyvEUb0COmuUYPBSRl16lxnbNGBtYXSaDKPWhmR-q7J56X5U6RvnTmXZliG7.X5Pl7h7r-7zSDFdd?startTime=1617195800000 ********** 3/29/21 Monday Lecture class (posted by Dr. Hahn on 3/29/21 Monday at 11:12 pm from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/B6dHvDMccTDoBgV1AjuePU0d4F_hbDBguxsUwSVigoF2xmH8o8m23qp7cIs2SM9V.eNGdr9sxUofh8LXO?startTime=1617022962000 ******** 3/26/21 Friday Lecture class (posted by Dr. Hahn on 3/26/21 Friday at 10:30 am from her Citadel office) https://citadelonline.zoom.us/rec/share/wLm-s1gWJlE7VWptjfIXcM5dzUImAr3TKlDuW-8i9Bl4gM5EgIf5Ho9YfARWksy8.4iVPNUR37_rGbRwy?startTime=1616763921000 ******* 3/24/21 Wednesday Lecture class (posted by Dr. Hahn on 3/24/21 Wednesday at 12 noon from her Citadel office) There was a class on Monday but I was unable to hold a zoom class because the Citadel website (lg.citadel.edu) was out. I found out after the fact that there is an alternate way to get into the zoom but I did not know at the time so I did not record the class. However I did not make that much progress because I had a lot of homework in class that I had left off at the last class so I just posted the powerpoint without posting the zoom class. Since there was no zoom class and no zoom class recording, I would have had to record it at home so I didn't do the re do of the class by recording it at home. I always takes me longer to record at home, I am not sure why. https://citadelonline.zoom.us/rec/play/xGdESxvvF3XZNHk9UmGMdJbFkU36VLZKh2zjdxOIYQrkklnWv3PV1erh7vlBHsu5dYuW-K7uMptmcB9g.4t4QER8CIQg0kKmj ******** 3/19/21Friday Lecture class (posted by Dr. Hahn on 3/21/21 Sunday at 12:40 pm from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/play/gwimCCdQvJiykY_hAoh8uyUU74O7KhSKHYDqD72NeF1pBrb50YC8-Z1c7EgdSvip-fqEABXwRrimtqn0.BrNMVXe9c1QQEyLd ******* 3/17/21 Wednesday Lecture class (posted by Dr. Hahn on 3/18/21 at 7:50 am from her parent's Columbia, SC home) This recording worked although the recording is choppy because my laptop is slow. I was going to use the ipad / desktop because of the sound only desktop recording of the last zoom recording but I forgot to bring the ipad (left ipad in Columbia). (My brand new laptop got slow after I downloaded a bunch of zoom recordings before I uploaded the zoom recordings to the cloud early in the semester.) https://citadelonline.zoom.us/rec/play/Xub3IdMLq-Iur_-VAjkT0gKIdN4roDMKc62v8yqW4RBDYfcP_aKYmcR-icG6eRFTGsBZEmL0EAjcSQVk.7vnXTKGjKx52TxzQ 3/15/21 Monday Lecture class (posted by Dr. Hahn on 3/18/21 at 7:50 am from her parent's Columbia, SC home I had to relog in because the system would not let me log into the Citadel zoom and somehow when I recorded it the share desktop did not work. So this is the audio recording. I will also post the powerpoint so hopefully that works (& everyone was either in class or on zoom during the live class so I will probably not re-record the class lecture). https://citadelonline.zoom.us/rec/share/McJBVi54MmJam3vNVuiErDMvaWPz3Teiu1hshrLybe4q7pNTX0chlP2hoBAgksdW.qhV5UZKskOyoEF7u?startTime=1615813581000 Test 2: Starts on Polymer's Chapter (Chapter 10)(starts with & includes rubber and elastomers) Includes all of Household Chemicals Chapter (Chapter 20) Biochemistry Chapter (Chapter 16) until Enymes (ends before enzyme induced fit) There was some problem with recording the zoom class using the computer in the room with the ipad (what I used in almost all prior recordings). It only recorded the video without the sound. so I have not posted the 3/8 Monday class. (entire class in pantomine) 3/10 was the test date so I did not record the class during the test although I did have zoom live. I then did not have a 3/12 Friday class because that was the Citadel's holiday (mini - Spring Break - 3 day weekend). Because I could not figure out the issue with the desktop in the room & because the desktop system is so complicated because there are multiple cameras and multiple sound components in the room, I started to use my laptop without the ipad. 3/5/21 Friday Lecture class (posted by Dr. Hahn on 3/6/21 at 8 am from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/nM7BiBpjpslNmqfzR8zlpjo5WgcZ75IOU9B8v4utml4_lN-9BArHI5Ulh9L-yGlt.v3TvuRP__t5wv8sw?startTime=1614952911000 no zoom recording for 3/3/21 Wednesday because forgot to record (I manually turn on record in zoom. I was told that there was a huge issue with divulging student personal information about students when positing zoom recordings online. So I was trying to start recordings after any personally identifiably information is already discussed. However it seems that when a student asks a question in person, the student's name is not identified with the question. So I will just turn on recording as soon as the class starts in the future. ******** 3/1/21 Monday [posted by Dr. Hahn on 3/1/21 at 12:17 pm from her Citadel office Byrd 318 (outer room)] https://citadelonline.zoom.us/rec/share/cwxOpPhtmJHv2nrzP2XJfbfjQsMAkEiY_Q9OOJp_l1kbvHj9NIebvzGYbIeEPkD2.pthO_72NapEW8uqp?startTime=1614607742000 ****** 2/26/21 Friday (posted by Dr. Hahn on 2/27/21 at 6:35 am from her parent's Columbia, SC home) The reason why there is no Wednesday 3/24 recording is because I had a car accident on my way to class so I got to class about 5 minutes after 9 am. (I waited for almost an hour on the highway for the police to come to take a report of the accident.) I handed out all our graded HW in class and Test 1 and then we did not have a lot of time left because we had to take Quiz 3 in the last 15 minutes of class so I did not record or post the class. https://citadelonline.zoom.us/rec/share/9jIKbjoKG5F_vmrtKPH-FKwdeXzFQ6ghrgZCKSzmlI7xz7n1wElTU4nmz5vqeFWx.lKszZgiLz3zTGJq2?startTime=1614348290000 ******* 2/22/21 Monday ( posted by Dr. Hahn on 2/23/21 at 4:20 pm from her parent's Columbia, SC home - until around 9:30 am, the microphone was not connected so you can't hear anything.) https://citadelonline.zoom.us/rec/share/OW2-f_g0CS7yYN1j8wlmrgvAwI8vnMf4p0nvBkuTB2Y0OSi-LrOCLKy7QyfXgGPY.qrCCzlg-sXwTQ9fw?startTime=1614002724000 ******** 2/19/21 Friday (posted by Dr. Hahn on 2/20/21 at 7:20 am from her parent's Columbi, SC home) Topic: Intro to Chemistry II Start Time : Feb 19, 2021 08:57 AM Meeting Recording: https://citadelonline.zoom.us/rec/share/hHUA6MAqrmqgf-1w9AtcZ_ztBJrNUigkjp59mE-vbg7RO5qz1UQ6uQUfvgMndH8x.zOgEDPtjTeesdHve ******** 2/17/21 Wednesday Topic: Intro to Chemistry II posted by Dr. Hahn on 2/18/21 7:40 am from her parent's Columbia, SC home (there is no recording of the 2/15 Monday class because the class was not recorded because of technical difficulties) Start Time : Feb 17, 2021 08:55 AM https://citadelonline.zoom.us/rec/share/4oI2269aV2Z3f_PgfwvX717SpShy5QNsFYFedtsnWisRMinTRYA9R9y5ZSiuz3Ij.PRuWa5cN8m7G74EZ *********** 2/12/21 Friday Here is the posting of the Friday class. https://citadelonline.zoom.us/rec/share/TnamP3PTo4KtMz-Tz0B-Srt9DWUkBoYjaxtVIz795S24h0Whd2Qv8Q5OQ4f9NEwU.-m8XKg1FVd6JO94Y?startTime=1613138891000 posted by Dr. Hahn on 2/12/21 Friday at 10:26 am from her Citadel office (Byrd 318) 2/8/21 Monday Here is the positing of the Monday lecture class. Forgot that I did not post it yet before Test 1. 2/10/21 Wednesday was Test 1 so I did not record that class period. posted by Dr. Hahn on 2/12/21 Friday at 10)30 am from her Citadel office (Byrd 318) https://citadelonline.zoom.us/rec/share/bhtwLKj-CgUdpyGljaURJTaJTiQ1qJ_JoTfeK1WhPahOyU1Ro7lvqA8Be4BDde5u.OhTF1O8W4QwMBAuT?startTime=1612793120000 2/5/21 Friday Here is the posting of the Friday class. https://citadelonline.zoom.us/rec/share/p5v9qTicYjucwsYgPCKJzV8VwE_Ytx_a8KxDuxznZX_B-GQ2utxXYVKx-vfm5W_g.Ka4Snyr9VAadzOEj?startTime=1612534197000 posted by Dr. Hahn on 2/6/21 at 9:40 am from her parent's Columbia, SC home 2/3/21 Wednesday Here is the posting of the Wednesday class. https://citadelonline.zoom.us/rec/share/zoR5mJ62c68S-dQgvN4V1DMtXRtBoQB1DUrDB36nGq3-rA-iNWqsZooYhudvcwOx.U9Tu_Jj9GhylUUXq?startTime=1612361098000 posted by Dr. Hahn on 2/4/21 Thursday at 7:10 am from her parent's Columbia, SC home 2/1/21 Monday Here is the posting of the Monday class. https://citadelonline.zoom.us/rec/share/iNQHYo5tnuHlhZw_oyVzzLlHjqqUEoTbKpY4aUeK_AJmH7A5HziwKyxGFtREBQgx.Ezy4SyCmdMQw3vYW?startTime=1612188656000 posted by Dr. Hahn on 2/1/21 Monday at 11:14 am from her office Byrd 318 from the Citadel, Charleston, SC 1/29/21 Friday Here is the posting of the Friday class. Wednesday class had some problems with the powerpoint not being visible & lots of technical problems. So on Friday I just used the desktop but then my document camera did not get recorded. I only recorded my powerpoint (with my pointing not visible) So I will attach a one sheet showing what was on the document camera. Hopefully you can tell where in the video the corresponding document camera stuff (here is the single page) was on screen. posted by Dr. Hahn on 1/30/21 at 8:06 am from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/VFjR_hAMfGnsHH2iQsO6qnaYNMpSEYGHEUpFG86Uvzmx3t--IB3qHpv8VD1K7owK.L9ZnsK6y2cReXn0D?startTime=1611929256000 Here is the link to class for 1/25/21 Monday for the Intro II Lecture (9 to 9:50 MWF). https://1drv.ms/u/s!AtMCcaDAH2NEi04fWz5LhBLQwLx3?e=hQPiXf Those of you on zoom, should just write the answer on a piece of paper, cell phone photo it and email it to me at close to class time (to jhahn@citadel.edu) and I will grade it. If you don't I am NOT using the homework as attendance so you will NOT earn a zero if you do not turn it in. It is however in your best interest to do the HW so that you learn the material. I will grade what is turned in and assign a grade for the turned in HW. (at a differnt college when I allowed students to turn in excuses for HW, I ended up with so many excuses for the HW that it got a little out of hand so I am not going to do that - assign zeros for HW not turned in ) posted by Dr. Juliet Hahn from Byrd 318 at the Citadel in Charleston, SC at 10:28 am on 1/25/21 https://1drv.ms/u/s!AtMCcaDAH2NEi01jfaRKowBN4jZR?e=aEe4TB Here is the link to my recording for 1/20 Wednesday and 1/22 Friday lecture for the Intro II Lecture (9 to 9:50 MWF). I had technical difficulties and was unable to record understandable class lecture. I just covered the same material as just a recording. posted by Dr. Hahn on 1/24 at 11:01 pm from her parent's Columbia, SC home Those who were on zoom, should not try to complete the HW in class. Since the live zoom did not work, I was unable to have you guys do the HW in class. In the future if the zoom works, then you can just write your answer on any piece of paper and then cell phone photo ****************************************************** Intro II Lab Spring 2021 Here are the final stats for my 3 sections of Intro II Lab in the Spring 2021 semester. lab quiz average (after the lowest one quiz grade was dropped) = 87.2% lab report average (after the lowest one lab report grade was dropped) = 91.8% overall final lab grade average = 90.7% I got really busy after I submitted your final grades with starting to teach at Aiken Tech their summer class. A few of you have been asking me for what their final grades ended up being so I am emailing everyone in class their individual grades (every single point earned for every piece of work submitted). posted by Dr. Hahn on 5/27/21 Thursday at 9 am from my parent's Columbia, SC home ************** Intro Lab on 4/19/21 Monday (Calcium in Propel Titration) (posted by Dr. Hahn on 4/20/21 Tuesday at 3 pm from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/t_6mQSr2ls48gqGwQ8QyRJtaXv9J-gCW_LiAqWV2XRygF1BXSHvpFBHaQpWFLGVc.SLNwEk7YX8Wt96LV data sheet The propel started out wine colored and at equivalence point was blue. ******************** Intro Lab on 4/12/21 Monday (gas lab) (posted by Dr. Hahn on 4/13/21 Tuesday from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/JdeDB9cys1xctkR_d0oWCktUP7hEUflUKEerrwwo-WVN2YbMRn8GRFwddmjPreX9.q8em5D3ZGcmLGByH data: the carbon dioxide and sulfur dioxide were both acidic Intro Lab on 3/31/21 Wednesday (sweetner lab) (posted by Dr. Hahn on 4/6/21 Tuesday at 5 pm from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/eiFCMldjIJ7T6gh99ANhjiaEn52N47zr8SJuh951fPIGpaG2Hohvw2gnfIUjTJXH.5pd6xZSVUVc3lYnK?startTime=1617209979000 Sugar Test Tube Pictures Here is the data from two of your class room colleagues. Note that sucrose unhydrolyzed looks slightly like a reducing sugar in one but not the other. Since you are boiling the solution with a basic water solution, it is possible that the sucrose DID somewhat hydrolize (because it is a base catalyzed addition of water reaction in the Benedict reagent although the hydrolysis reaction is much more complete in the acid catalyzed reaction with water. **** Intro Lab on 3/29/21 Monday (ester Lab) (posted by Dr. Hahn on 3/30/21 Tuesday at 9:50 am from her parent's Columbia, SC home) https://citadelonline.zoom.us/rec/share/u0Jw0bdbCUl8GgBvbnuaQLABS5EBHhxEdJhB4giwlUsbY1Nc722QZ1-X8tOdhfji.QvTh8quAECW2IIvB?startTime=1617044532000 data ester lab : rxn A pear B bananna C pineapple D oil of wintergreen E grape/orange https://jameskennedymonash.files.wordpress.com/2013/12/table-of-esters-and-their-smells-v2.pdf (useful stuff from online) Intro Lab on 3/22/21 Monday (vitamin C lab) posted by Dr. Hahn on 3/23/21 at 3:50 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/z6HCbCOTgJNm_Vebm_7Bd2NNWx7pqDq2RZ6ijZ-QHGRM-SA-3V1T75kd_81vjIjS.XMf9jNcWbXEFqGM- vitamin C data - We only did one of 2 trials for both the vitamin C tablet and the grape juice. Part 1 no input trial 2, L3 = L4. L1 = 38.20 mL L2 = 0.41 mL L5 = 100 mg / vitamin C tablet (on bottle) I left this bit of data off. Sorry. posted by Dr. Hahn on 3/25/21 7 am Part 2: no input for trail 2, L12 = L13 L7 = 95.10 mL, L8 = 29.19 mL, L9 = 0.02 mL Intro Lab on 3/15/21 Monday (aspirin lab) posted by Dr. Hahn on 3/16/21 at 11:23 am from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/SdBVWSDLJR0AxgiafTZT63W9qX_O4QwAT-f9AbTCgKUeKMgYiaNXHsNtfiH7kayM.cBXtY-Bzld0-gjuX AspirinData ***** Intro Lab on 3/8/21 Monday (Casein in Milk Lab) posted by Dr. Hahn on 3/9/21 at 3:50 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/APyniV5k6zPCdEQXM-vZOtagvgKDZy5J8oiJCQkGbwCLThf-2h9v62ghsxnvBpgp.smcVHlAl_4Vln7n2?startTime=1615233895000 Casein in Milk Data ****************** Intro Lab on 3/1/21Monday (Lotions Lab) posted by Dr. Hahn on 3/2/21 at 3:55 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/6IpGrxA96d03uQLFWOHhXVEvf1YIsXgH4PAqknONcFAW6ezfNoioat1W5NdQdjBP.kqoDa6nC8T0VzVj3?startTime=1614621690000 Soap&LotionData ***************** Intro Lab on 2/17/21 Wednesday (Soap Lab) posted by Dr. Hahn on 2/23/21 at 4:24 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/WJ78r_cA_qzgd6ij_ZZXIo_nV7kcI_-mB4T_46NP5dOKzAGhO2cW5Vbz1SNMV3wo.RxfLheQqvAvABImO?startTime=1613585194000 ***************** Intro Lab on 2/15/21 Monday (Polymer Lab) posted by Dr. Hahn on 2/16/21 from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/FOzbcunCrxVAMO9BO-zDGecB8cLsGgjJC4UdX8O4CtwqgIV9t0YTLP9JgyyZ7qmM.gFCzetWTc3ZF8NBx?startTime=1613419370000 data Polymer Lab: nylon color white nylon ball color white translucent translucent brittle more elastic harder softer weak weak slime color clear half liquid second slime color clear more solid transparent less transparent slimy gel like soft liquid gel solid weak weak hexane top layer, nylon middle layer, water bottom layer Intro Lab on 2/8/21 Monday (Functional Groups Lab) posted by Dr. Hahn on 2/9/21 from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/6wP7GD55Iu0nnD_h-rxB1VVTmSeF6iIU_iUoDlTk9Wxe1Vbu6-6yGhi1kH4ebbsD.-3HLHq3MI7nZCyD9?startTime=1612807793000 data sheet (Functional Groups Lab) Intro Lab on 2/1/21 Monday posted by Dr. Hahn on 2/2/21 Tuesday 2:49 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/Sj9lV-qi_M1LRdQ_dBykcWzSk979XH83hGCGf278iP7NgfvcGROHCx52zPrVU5rC.Uf7y4ZCxpA5opatC?startTime=1612209838000 Here is a recording for the Intro Lab on 1/25 Monday posted by Dr. Hahn on 1/26 at 3:20 pm from her parent Columbia, SC home https://citadelonline.zoom.us/rec/play/7G8kVfxloCAoHf6qbTLAwSL3gCD99HtlImgBS1nVikD4nK2daO3nl4c36PWHr_ARIgBRBXZrrM0sUBi5.OueFZ8GRRfe8Ml7- ****************************************************************************************** NONE of the below zoom links work because I am no longer teaching at Greenville Tech. Classes Teaching at Greenville Technical College Spring 2021 General Chemistry I (CHM 110) online section 2 (lecture and lab) (15 students) online live zoom class Tuesday 9 to 10:15 am , Thursday 5 to 6:15 pm PowerPoints: Chapter1 Chapter2 (posted by Dr. Hahn on 1/28/21 at 9:50 pm from her parent's Columbia, SC home) Chapter3 (posted by Dr. Hahn on 2/11 at 11 pm from her parent's Columbia, SC home) Chapter5 (posted by Dr. Hahn on 3/6/21 Saturday at 10:30 pm from her parent's Columbia, SC home) Chapter 6 (posted by Dr. Hahn on 3/11/21 Thursday at 11:20 pm from her parent's Columbia, SC home) Chapter 7 (posted by Dr. Hahn on 3/16/21 Tuesday at 10:17 am from her parent's Columbia, SC home) Chapter8 (posted by Dr. Hahn on 4/8/21 Thursday at 9 am from her parent's Columbia, SC home) Chapter9 (posted by Dr. Hahn on 4/13/21 Tuesday at 11:20 am from her parent's Columbia, SC home) Chapter10 (posted by Dr. Hahn on 4/17/21 at 10:20 am from her parent's Columbia, SC home) This is the full chapter. The earlier version was half the chapter. Chapter11 of 4/20/21 end class (posted by Dr. Hahn on 4/20/21 at 10:30 pm from her parent's Columbia, SC home) ReviewPowerPoints (posted by Dr. Hahn on 4/24/21 at 5:09 pm from her parent's Columbia, SC home) Key to Quiz 2 & Quiz 3: posted by Dr. Hahn on 3/1/21 at 12:27 pm from her Citadel office These quizzes will help you study for your Test 2. I also emailed everyone in class information about when Test 2 and Test 2 Work Hahn will be deployed. If you did nto receive a BB email today (I sent it today), then check BB announcements which has the same information as the email. Answer Key Quiz 4 posted by Dr. Hahn on 3/19/21 from her Citadel office Please study this quiz & all the homework in class questions to prep for the Test. I will provide the constants table & the Test Information and periodic table on the test. Good luck studying for the test. I hope you all do well. AnswerKeyQuiz5 posted by Dr. Hahn on 4/15/21 at 2:11 pm from her parent's Columbia SC home *************** 4/22/21 Thursday live class (posted by Dr. Hahn on 4/22/21 at 12 midnight from her parent's Columbi, SC home) (The prior posting was accidentally the one for the Tuesday class. Someone pointed this out so I have posted the Thursday class now. reposted on 4/27/21 Tuesday at 7:54 am from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/Jrjwc3pHWUrag35L7Jg5KbNvrwzSQFQOFgdHLOxMiUYloDJDiMaehpURtbTfolAK.1loNZdzS9quCgO7C 4/20/21 Tuesday live class (posted by Dr. Hahn on 4/20/21 Tuesday at 3:25 pm from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/CagaZaMJja5msWLvqzX7Yvhs56wAZcugDfkJa9XZNc_LFRGUgdMq6q1_D0QpatN0.4Ukoajf9lxXh53KW *************** 4/15/21 Thursday live class (posted by Dr. Hahn on 4/16/21 Friday at 10:50 am from her Citadel office https://gvltec-edu.zoom.us/rec/share/AYydY4UdarJtgnpX_CwMAODBvGb1aMG-x3W-88HS7ga0e87vdhOYCyaXL1kBzC_a.ofnKmTcQqX4A3KyM ************** 4/13/21 Tuesday live class (posted by Dr. Hahn on 4/13/21 at 11:18 am from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/AYNjULnf8BhetHfWFSsj2SPSiFJODw4HwgxeRPsD-VnURTWLm83Wxg9ZNNAQxXmH.oal0DYljoext55l7 ********** 4/8/21 Thursday live class (posted by Dr. Hahn on 4/13/21 at 5:44 am from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/Oo-7yLc_m3Oe-wQ3-2O32C9QNowCV-3iMIthBXp3YFx6zh_yFSIEviCfnB5fr5fW._BxaqZECnlXDOsfY HW8.4 VSEPRT-handout ******* 4/6/21 Tuesday recording of the live class (posted by Dr. Hahn on 4/8/21 at 9 am from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/VZPzIW29ItER8zhpHEoWQlHHSVRutMhjZ1WIpwsbdLyv0Sz7SS7pU6RZk9z5djLM.ygrqfHJ4Vjl0Ha_O ************************* 3/25/21 Thursday recording of the live class (posted by Dr. Hahn on 3/26/21 at 10:44 am from her Citadel office) https://gvltec-edu.zoom.us/rec/play/QpQ3KVa_vUR-g7uLZMurk7ty49JgqatbSOtnqil-bbb-jr6GSTNnGLqY4lHrGDOsLIGIQYu_GZe8RALJ.jf69vZeyteTfoYmn ******************************* 3/23/21 Tuesday recording of the live class (posted by Dr. Hahn on 3/24/21 at 12:15 noon from her Citadel office) My laptop crashed at the beginning of class so I had to reboot and re start the zoom class. So the class started at around 9:20 am (instead of 9 am ) but went to around 10:20 am. https://gvltec-edu.zoom.us/rec/share/idHGoguG2Ufe7iLekFy4WG8Arh1JP4RLo1ZW5dCSRvJUDS3fMWz9IjPU8IjTHcy1.zlAXzffQ1I4jTFnH ************ 3/18/21 Thursday recording of the live class (posted by Dr. Hahn on 3/19/21 at 10:13 am from her Citadel office Byrd 318 (Charleston, SC) Test 3 & Test 3 Work Hahn opens up at 5 pm today 3/19/21 until 3/21 Sunday at midnight Test 3 can be taken for 90 minutes Test 3 Work Hahn can be taken for 60 minutes. You would want to open up Test 3 Work after completing Test 3. Please note the the recent modification to your Test 1 and Test 2 grades were from the Test 1 Work and Test 2 Work. I gave NO extra credit points for anyone from looking at their work because only one person requested that I look at their work. The added points were from completing the 2 word problems on Test 1 & 2 Work. I also always give partial credit on the word problems (on Test 1 & Test 2 Work) so even if you came up with the final incorrect answer, if you showed reasonable work, you would have earned some partial credit. UPSHOT: DO NOT BLOW OFF THE TEST WORK & SHOW WORK ON THE WORD PROBLEMS ON TEST WORK. IT LITERALLY COULD BE THE DIFFERENCE BETWEEN AN F AND A C. https://gvltec-edu.zoom.us/rec/share/6NaI6Qe-SLywnZ4Ct2V1ke6HcMRewYK_-Jwm9rPZNot-7c3azXYtN2-B1PCccdmt.0efEVuhS3__e8I_j *********** 3/16/21 Tuesday recording of the live class (posted by Dr. Hahn on 3/16/21 at 10:38 am from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/s8sCodSbgw98ksB26Dx9QkAGK2ejmxwXvfEWjYIIv-M0nM8tiC-Fc2in4OK2ME-1.pLoaUP0co7PriRmi ************** 3/11/21 Thursday recording of the live class (posted by Dr. Hahn on 3/11/21 at 11:15 pm from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/play/R8AmsC7OYHLCxKlwDZQkBL2NmCwfJKzROnlmuYTc2GX8yR0ZacxKVP0zxheZ4qRYhMt8k7j2E4rkDSwl.5f9XC52kSQ5M3yZ1 ******************* 3/9/21 Tuesday recording of the live class (posted by Dr. Hahn on 3/11/21 at 2:20 pm from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/fs7bflRAjrRIEM5HwbadRalrIRlCGCt7876pmT1OyGFkv9pZ8zyQ9W7JicUVX8R4.FkVhmAR-EBDAzor-?startTime=1615298590000 3/4/21 Thursday recording of the live class (posted by Dr. Hahn on 3/6/21 at 5:40 pm from her parent's Columbia, SC home) https://1drv.ms/v/s!AtMCcaDAH2NEi3dwL-NDMsvTv7GN 3/2/21 Tuesday recording of live class (posted by Dr. Hahn on 3/4/21 at 9:14 am from her parent's Columbia, SC home) https://gvltec-edu.zoom.us/rec/share/ghcYFWKKlTl3AP0DliClytuFWMdzA2jrwAYQeh33DNQMQ-azWQoXtwzFXSe4ctEN.fEjFGWttNp280kXI?startTime=1614693925000 ********** 2/25/21 Thursday live class recording (posted by Dr. Hahn on 2/27/21 Saturday at 8:15 am from her parent's Columbia, SC home) Topic: 2021SP_CHM-110-W02 College Chemistry I Thursdays Date: Feb 25, 2021 04:55 PM Eastern Time (US and Canada) Meeting Recording: https://gvltec-edu.zoom.us/rec/share/7HD-bpNf447_vsGYNFIA97G1XY9ik8gurmiBYiHfiTzbfpYjwkEOZO1KHQ4baTfv.Z0wSrkMCJE-gzDeZ ************** 2/23/21 Tuesday live class recording (post by Dr. Hahn on 2/23/21 at 4:45 pm from her parent's Columbia, SC home) Date: Feb 23, 2021 08:51 AM Eastern Time (US and Canada) I believe this opens without the password. I logged out of everything and it lets me view the recording. If you can't see it, let me know ASAP. You have extra credit on problems covered in this lecture below. Meeting Recording: https://gvltec-edu.zoom.us/rec/share/a18x-z2sghs-3r_32c9gyRHItsAZ5pAZ3KkUq1QTVgt4uUBnIcU9Pd8RVQBpzlLJ.yrIMlZuQtUkI1AeW ********** 2/18/21 Thursday live class recording (posted by Dr. Hahn on 2/20/21 at 7:10 am from her parent's Columbia, SC home) Topic: 2021SP_CHM-110-W02 College Chemistry I Thursdays Start Time : Feb 18, 2021 04:56 PM Meeting Recording: https://gvltec-edu.zoom.us/rec/share/PEUrGQERWETxP2NVuxQTuluyQyzzXI-DnNZ9WKobe0DECiUzByx5-X2wKdWpDYvq.TGxMk_33vy3rir06 Access Passcode: 0R^emJ1? *********** 2/16/21 Tuesday (there was some error in posting earlier. This is the correct posting for the class. Sorry. posted by Dr. Hahn on 2/20/21 at 7:10 am from her parent's Columbia, SC home) Topic: 2021SP_CHM-110-W02 College Chemistry I Start Time : Feb 16, 2021 08:54 AM Meeting Recording: https://gvltec-edu.zoom.us/rec/share/cK8GW7UlKVJphW9AHkl2MWQAoLDRoCaVFtETw3w1lYnkAKGkkOKnpJuD8dEFMOJR.8ZUBbyGw4uP6xnKD Access Passcode: ?3!V*^tS ******** 2/9/21 Tuesday live class recording (posted by Dr. Hahn on 2/10/21 Wednesday at 11 pm from her parent's Columbia, SC home) Topic: 2021SP_CHM-110-W02 College Chemistry I Date:Feb 9,2021 9:00 AM Eastern Time (US and Canada) Recording-1(90 MB) https://gvltec-edu.zoom.us/rec/play/xgncQs49eVlo5UGrVQ3j4XPNBMOev1qyAxsYU-LXvF3dMdJlnXziftiPT3pTJYTmpcLTGWh3IwaxU1hB.hyS7yPVRW-4bZ_NI Passcode: fL5L%p5M 2/4/21 Thursday live class recording posted by Dr. Hahn on 2/4/21 at 8:50 pm from her parent's Columbia, SC home combustion does not always give carbon dioxide and water. If you burn the element sulfur, you get SO2 for example. You only get CO2 and H2O if you burn a hydrocarbon (only has C and H in molecule.) There is a typo in the Empirical Formula Lab (Combustion Analysis of duration 8:41). Number of moles from 0.561 grams of CO2 is 0.0127 moles NOT 0.127 moles. {0.561g * (1 mol CO2 /44.01 g CO2) = 0.0127 NOT 0.127} Topic: 2021SP_CHM-110-W02 College Chemistry I Thursdays Date:Feb 4,2021 4:21 PM Eastern Time (US and Canada) Recording-1(74 MB) https://gvltec-edu.zoom.us/rec/play/czE8Lvby2WwWp61Fyg75TtwNVG-1174pym5oD7duk5REzAwed4TBOhsEcXAVJCGiD3hKbs1bGpF9OnR0.VTBetty9Fm8TuG1R Passcode: R@3!5bmS ****** 1/28/21 Thursday live class recording (posted by Dr. Hahn on 1/30/21 at 5:40 am from her parent's Columbia, SC home) Topic: 2021SP_CHM-110-W02 College Chemistry I Thursdays Date:Jan 28,2021 4:58 PM Eastern Time (US and Canada) Recording-1(94 MB) https://gvltec-edu.zoom.us/rec/play/-djD63A2lxwb2qqF44W_g5FlouqSIiooqJjCxFdvyEK3CnxuTK9ddiuCzhEdK29fpJTzwq2TKOhqrC3Q.B_eJc3c8Layxs5sP Passcode: r4##^nGf ***** 1/26/21 Tuesday live class recording https://1drv.ms/v/s!AtMCcaDAH2NEi1B5mcA5xZqEMxaG posted 1/28/21 at 8 am by Dr. Hahn from her parent's Columbia, SC home ***** 1/21/21 Thursday live class recording: https://1drv.ms/v/s!AtMCcaDAH2NEi0e5xBoK_di24-wo Sorry for the delay in posting this. posted by Dr. Hahn on 1/23/21 at 9:50 pm from her parent's Columbia, SC home I can see the class recording in BB (course tools, zoom, under tab - recording) but I am not sure you guys can see it. I am showing the link to the cloud recording below. posted by Dr. Hahn on 1/19/21 at 7:40 pm from Charleston, SC ***** live class recording 1/19/21 Tuesday 9 am to 10:15 am Topic: 2021SP_CHM-110-W02 College Chemistry I-Tuesday Date:Jan 19,2021 8:49 AM Eastern Time (US and Canada) Recording-1(218 MB) https://us02web.zoom.us/rec/play/nNoxFFhw8yNgu0EzDzQJZ8unFCm_M-bzPl3q7SydZ7sH1lrESF-q7aarGY-xMb2JXK09yRvyv0rTHKRF.YMMIubCXWjwvHKKG Passcode: U1S.z8yt ***** 1/14/21 Thursday live class recording 1/14/21 Thursday 5 to 6:15 pm posted by Dr. Hahn on 1/15/21 at 9:23 am from her parent's Columbia, SC home (I was not able to edit out the before start of class where I was adjusting the zoom. If you go to 7:05 minutes after the start of the zoom recording, I start the class.) ******************** |
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| Stuff for The Citadel classes Fall 2020:
Because the college will now be
deleting zoom recording after one month on the college zoom
server, all of the zoom recording links to the citadel zoom
cloud is no longer valid (which is why all of the class
recordings from the Fall 2020 semester are no longer visible). CHEM 141 Stuff: Here is the zoom recording for the 11/19/20 class. (turning in last 2 lab reports and doing the last 2 quizzes) posted by Dr. Hahn on Sunday 11/22/20 from her parents Columbia, SC home https://citadelonline.zoom.us/rec/share/983DUVgy6RVlAUezREfkjX3Bmd7aLke3Qtc5yqYHOR_H9-bcy9kzJyZ3RTmKId46.cibzI2G1EL0rwo7i?startTime=1605813844000 Here is the zoom recording for the 11/12/20 (Lab 10 continued - Quiz Lab 10, turn in Lab 10) posted by Dr. Hahn on 11/13/20 Friday at 3:50 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/DVr2DB7_AzEua5nvWJMqozkRt1RUHhiwwRuQpdhwX86a_qp2mPXWx8HhCp9vzur4.E8Kv-M15B_wM1mqf?startTime=1605188141000 Annoncement is that the FINAL DEADLINE for ALL late lab reports is 11/23 Monday. By this deadline (a) you need to turn in complete late lab reports (for 10% off grade) (b) turn in documentation of excuse (will average and plug in a grade) (c) earn a zero on all late lab reports NOT turned into Dr. Hahn Please note: my syllabus actually states that you will earn ZERO points after one business week late. There will be NO FURTHER LENIENCY. The last day for lab class meeting was 11/12/20. If you want to turn in anything after this deadline, you will have to email anything to Dr. Hahn. Here is the zoom recording for 11/5/20 (Lab 10: Shapes & Properties of Molecules) posted by Dr. Hahn on 11/6/20 at 9:45 am from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/IcZuOGDof2gSgewiPTQWvaKGnG_QXOU0Fxi0ZALXdR8rB-2Wxb_x0QoDzFLMTu__.mp_LXQ-m-VSGp1jl?startTime=1604584513000 Here is the zoom recording for 10/29/20. (Lab 9: Lewis Structure Lab) The swivl robot was left with the microphone unplugged so the first 30 minutes of class are recorded with no sound (I put the microphone into the swivl to recharge it and while the mic was being recharged, there was no sound.) I did start class one time and always spend the first few minutes going over the last lab before the lab quiz. The following is after I handed out the quiz. posted by Dr. Hahn from her parent's Columbia, SC home on 11/2/20 Monday at 6:50 am https://citadelonline.zoom.us/rec/share/CgLoDqktkkwHm4KAsVKyXM6ZHF9UeKB6AGWapUTJeQ58WZYhOZePQpi5_H3j0k3C.Pmhl5fMozPnUzZxf?startTime=1603976686000 Here is the zoom recording for 10/22/20 (Lab 8: CdS nano lab) however there was a technical glitch so that only the video from swivl is displayed and my computer desktop is not visible. https://citadelonline.zoom.us/rec/share/BddYnOsz6fipCTVFppMC8YggHQgezd7IJU9jxI6xO6kmkzB1NINDWHPJzjTnWFUz.9-J3bE_zk3n8-6XW?startTime=1603370591000 To compensate for that, I am also positing a pdf of the powerpoint and the excel spreadsheet. You can download the spreadsheet and then just input your data into my columns and the plot should convert over to your plot (as long as you do this on a computer which has the excel program. OR you can just do your own excel plot. (a) select your A and l columns (b) insert chart (scatter x,y) (c) double click the nm axis to adjust nm range (c) chart design - add chart elements (1) axis title (2) trend line (3) trendline options (d) print out chart to turn in with lab report form posted by Dr. Hahn on 10/24/20 at 4:50 pm from her parent's Columbia, SC home Here is the Zoom Recording for 10/15/20 (Lab 7: Spectroscopy Lab) posted by Dr. Hahn on 10/16/20 at 9:30 am from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/u2Hi8EzwyOdlgpAlVazIYqnjWCBiDs3x5-ikPtpR8inXRCh3tHebqcS_8VBf3ZQy.1x2rXcJSEpGOuzlI?startTime=1602765458000 Midterm Grades: Please note the following colume match to your part of the excel spreadsheet.
I did not include the safety quiz in your grade because some of you did not take it and can still take it. Also that quiz had a maximun of 20 (not 25 as is true for the rest of the quizzes). If you have an excuse for anything listed as zero, please email it to me. Quarantine excuses are listed as Q. Some excuse other than quarantine is listed as EX. If you told me you have an excuse but provided no proof, that missed assignment was counted as unexcused in most cases. Midterm grades are due on 10/15 when our class meets next so I will submit midterm grades before our class meets. For your final grade, you do get to drop one lowest quiz grade and one lowest lab grade. For the midterm, I did not do the drop as a warning. Dr. Hahn posted at 4:45 pm on 10/13/20 from her parent's Columbia, SC home Here is the zoom recording for the Prelab of 10/8/20 Thursday. (Lab 6: carbon dioxide in pop rock candy) https://citadelonline.zoom.us/rec/share/f6tydtaxPNgQ-nEgx_O9nC57QgYAdWac5lliXR0ZcdIMVARCdeOasLzqvOX-ASEA.DhcoWv_jZ2K8B_v7?startTime=1602161399000 posted by Dr. Hahn on 10/9/20 Friday at 7 am from her parent's Columbia, SC home I am not posting the class of 10/1/20 Thursday (Lab 5 cont: Part 2 of Chemistry of Copper Lab) because it was mostly just experimental information prior to doing the lab. Also I had technical difficulties because someone left the SWIVL unplugged (when I came upon it in the morning) so it ran out of power so I had to work with it plugged into the wall which messed up my setting up all the connections. There was not much prelab on 10/1/20 so I am not recording it to post here. posted by Dr. Hahn from her parent's Columbia, SC home on 10/3/20 Saturday at 8:05 am. Here is the zoom recording for the Prelab of 9/24/20 Thursday. (Lab 5: Part 1 of Chemistry of Copper Lab) https://citadelonline.zoom.us/rec/share/ynGG6Xge_FUmdTGTWl5vE1rUL_SBt5aNa-ond-SrDhPebgEWYIIp_vXTHyao-Qr3.9nQyTm7WM4pCcVCg?startTime=1600951671000 posted on 9/25/20 at 1:10 pm from her parent's Columbia, SC home Here is the zoom recording for the Prelab of 9/17/20 Thursday. (Lab 4: Determination of Chemical Formulas Lab) Because of technical difficulties during the actual class (my microphone/camera kept freezing), I recorded a zoom meeting of the prelab lecture after the lab on Saturday 9/19/20. https://drive.google.com/file/d/1MhpkZKw1YxU8OmuxHb8zYKkttte0lmmD/view?usp=sharing posted by Dr. Hahn on 9/20/20 Sunday at 8:16 am from her parent's Columbia, SC home I am not posting the Zoom Recording for the Prelab of 9/10/20 Thursday. (Lab 3: Identification of Polymers) I had difficulty with my camera and microphone so I kept unplugging and replugging in so I stopped recording the zoom. I had no zoom students online anyway. If you missed the prelab class, you still have to take the quiz at the next lab class meeting so you will need to get the notes from one of your colleagues. posted by Dr. Hahn on 9/12/20 Saturday at 12:30 pm from her parent's Columbia, SC home Lab Textbook-PolymerLab Here is the textbook for the third lab of the for those of you who are trying to get a textbook on back order. Meeting Recording Gen Chem for Engineers Lab 9/3/20: (Avogadro's Number Lab 2) Here is the link to the zoom for 9/3/20 class. https://citadelonline.zoom.us/rec/share/D23e_4T68c_WpVCERHM-JjXMyf7zNjJHGAqQW-MlM1wCAO6DQoIj2ZLSfEBAE2wH.zC8vHM6yeYRMwLAP posted by Dr. Hahn on 9/5/20 at 9:05 am from her parent's Columbia, SC home Information for Lab 2 (Avogadro's Number): Here is some useful information. The number of drops for your calibration is 80 drops per milliliter. (input that into B = average number of drops in 1 mL). Note that in the attached, I input into G (1mL/20drops) use for the G equation (1 mL/80 d) instead. Use your own diameter for C (volume of 1 drop). posted by Dr. Hahn on 9/4/20 at 11:40 am from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/ovxnFe3W-jlIYa_TtU_SdfEQH4fleaa81XQXr_Venxm1AVsNj8mE2gdZXMD1Nr6Y?startTime=1598532657000 Here is the link to the Livestream from the Lab Prelab of 8/27/20 (Lab1 Safety & Dimensional Analysis) for the Chemistry for Engineers Lab. There was a typo (writo) on question #4. I should have said 10-6 m3 = 1 cm3 (I wrote 10-6 m = 1 cm) posted by Dr. Hahn on 8/31/20 at 9 am. Syllabus Here is the syllabus Here are the first 2 labs of the Lab Textbook as promised. There are 2 parts of the Lab Manual. (Lab Manual Part1, Part2) CHEM 113 Stuff: Here is the zoom recording of 11/12/20 Thursday (Lab 12: Calorimetry) posted by Dr. Hahn on 11/13/20 Friday at 3:50 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/IokQi0FR8Q7sMYexr4CEmSmcSbVOd2GRKPiwFHbWBOj3ASncfmivHyVulYVXJaGM.1WGqNSBv70aAJdCw?startTime=1605204730000 Annoncement is that the FINAL DEADLINE for ALL late lab reports is 11/23 Monday. By this deadline (a) you need to turn in complete late lab reports (for 10% off grade) (b) turn in documentation of excuse (will average and plug in a grade) (c) earn a zero on all late lab reports NOT turned into Dr. Hahn Please note: my syllabus actually states that you will earn ZERO points after one business week late. There will be NO FURTHER LENIENCY. The last day for lab class meeting is 11/19/20 Thursday. Because I accidentally emailed the wrong data to the class and the class voted to ask for it, we will have our last 2 lab quizzes (titration and calorimetry) on 11/19/20. You will also turn in the reports for titration and calorimetry on 11/19/20. We will also do lab check out. After 11/19/20, the class has ended and we will not meet. If you need to turn in anything late after 11/19/20, you will have to email it to my email address. Here is the zoom recording of 11/5/20 Thursday. (Lab 11: Titration) posted by Dr. Hahn on 11/6/29 Friday at 8 am from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/4qjrLneAnXLdRkb-aAVyVpFSctEFSStZteqWGi4rRPSoI6oTqCBAt6lkUo258m5R.Lz2bN_qtzvqFdQ9i?startTime=1604600227000 Here is the zoom recordings of 10/29/20 Thursday. (Lab 10: Household Chemicals and pH) https://citadelonline.zoom.us/rec/share/j8TiDG0K66MEHrndwXmjt6DCydvCoq7dlHxDGXNcl-Ey4PT2yszaCeSWJMe9Fp5j.6hoSMWghOlSAh3qU?startTime=1603992292000 The SWIVL robot had the power cord slightly disconnected so that the microphone was out of batteries when I started class. So I put the microphone to recharge into the SWIVL and had no sound for the first part of the lab before the start of the quiz. Recording missed the review for the quiz and answering questions about the lab. posted by Dr. Hahn on 11/2/20 at 7:23 am from her parent's Columbia, SC home Since you were unable to look at the bottles for the ingredients list: Part 2: club soda - carbonic acid, gatorade - citric acid, lemon juice - citric acid, mouth wash - ethanol, selzer water - carbonic acid, white vinegar - acetic acid, windex cleaner - ammonia (you can google for instance "shampoo ingredients" and even that lists citric acid as one of the ingredients) obviously water has no ingredients so just write "none" for the rest of the household items in Part 2 chart (Part 2 actually is written Part 3 - typo) NOTE: the reason why our carbonic acid was not more acidic is probably because the pH depends on the amount of carbon dioxide dissolved in the water to make carbonic acid. If there is not enough carbon dioxide dissolved in the water (because the soft drinks are flat), then the soft drinks would have pH 7 as we saw in the lab. Also the ammonia in the windex is also a gas. If the windex sits around too long, if lots of ammonia gas escapes into the air, the pH would be almost neutral as we saw in the lab. Here is the zoom recording of 10/22/20 Thursday class. (Lab 9: Conductivity of Household Chemicals) posted by Dr. Hahn on 10/25/20 Sunday at 7:30 am from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/eGvEhG9uoUd_SdOkcVa55-e7E8uZ9hcEc59bB9i8YrcdRvPBVFXZUBTSccaVk5qV.lzOuNQzrwYsHW1xt?startTime=1603393974000 I did have some errors in the assignment of metal, metalloid and nonmetal. The ionic compound information was all correct. metalloids are (B, Si, Ge, As, Sb and Te). Metals are all elements to the left of the metalloids. Non metals are all elements to the right of the metalloids. Errors: Sn (tin) is metal NOT metalloid. Aluminum foil (Al) is metal NOT metalloid. Here is the zoom recording for 10/15/20 Thursday class. posted by Dr. Hahn on 10/17/20 Saturday at 9:30 am from her parent's Columbia, SC home Note L8 is your experimental measurment for final Volume (volume at cold water temperature of air). L9 (predicted) eq 9 is your Charles' Law calculation of the final Volume (volme at cold water temperature of air). L10 is a measure of your percent error. Good result would be a lower number for your percent error. Data for those of you without partners who were in lab is coming soon by email. https://citadelonline.zoom.us/rec/share/1TiHfbpBxkqX-3TBdroQYNW_DNXchst43renMHVzLyN3Ip75RK9FAo3f84-Txlf7.cxaZ6zZwq5M23uGc?startTime=1602782418000 Midterm Grades: Please note the following colume match for your part of the excel spreadsheet.
I did not include the safety quiz in your grade because some of you did not take it and can still take it. Also that quiz had a maximun of 20 (not 25 as is true for the rest of the quizzes). If you have an excuse for anything listed as zero, please email it to me. Quarantine excuses are listed as Q. Some excuse other than quarantine is listed as EX. If you told me you have an excuse but provided no proof that missed assignment was counted as unexcused in most cases. Midterm grades are due on 10/15 when our class meets next so I will submit midterm grades before our class meets. For your final grade, you do get to drop one lowest quiz grade and one lowest lab grade. For the midterm, I did not do the drop as a warning. Dr. Hahn posted at 4:45 pm on 10/13/20 from her parent's Columbia, SC home Zoom Recording for 10/8/20 for the Intro Lab: CuSO4 https://citadelonline.zoom.us/rec/share/jO4VEc6pTu-fwea-5nU6IKqPidVs1JhnM1ydQ3eefwkH-actCmIG98c8Gy4ePn91.4wcoccfbLXjbOr6u?startTime=1602177734000 posted by Dr. Hahn on 10/9/20 at 9:35 am from her parent's Columbia, SC home Zoom Recording for 10/1/20 for the Intro Lab: KClO3 https://citadelonline.zoom.us/rec/share/i5bm2pjNHJYzgWHhVVUv_zqtW7rLuYQzw6d1MxxdlY72rTeacwD4kwXqrlAv8aVT.aGwXee7ZJx5jDni4?startTime=1601580002000 posted by Dr. Hahn on 10/3/20 Saturday at 8:10 am from her parent's Columbia, SC home Zoom Recording for 9/24/20 for the Intro Lab: Names https://citadelonline.zoom.us/rec/share/FP7nHR-ghAdwaaWEUdQFe5CcxWIYHkKAT7MpgUdWR9k0tAAmUu7HikS-a8oSo9o5.bZV139X8YxXsUxZg?startTime=1600975149000 posted by Dr. Hahn on 9/26/20 Sunday at 9:44 am from her parent's Columbia, SC home Zoom Recording for 9/17/20 for the Intro Lab: Spectra LabMeeting https://citadelonline.zoom.us/rec/share/455FkE522S3SiaNeVyNscb6-3YdTEH80VE2ez59AArFYPcpOsnKPWpyrFV9x80ys.Hd5PnwLAQ2T0r9IP posted by Dr. Hahn on 9/19/20 Saturday at 10:34 am from her parent's Columbia, SC home Zoom Recording 9/10/20 for the Intro Lab https://citadelonline.zoom.us/rec/share/xyLKwLlt83uMD-4NsMofjNX7DKWIYU3nC4RrOA_h4LG-R14H047cv4oHGob76hJ4.3Xm7CJwe1XWw3MJd?startTime=1599765440000 posted by Dr. Hahn on 9/12/20 Saturday at 12:26 pm from her parent's Columbia, SC home Zoom recording 9/3/20 Thursday for Intro Lab https://citadelonline.zoom.us/rec/share/vAiD15E5fbZ9OMjGpH0rkxnrfIbSreyNZ-Op8YCmzyzQWIrhz1ICmROILhoayEEO.VLmDs1XChrHXVE8k?startTime=1599152778000 posted by Dr. Hahn on 9/5/20 at 12:20 pm from her parent's Columbia, SC home https://citadelonline.zoom.us/rec/share/7s9eAbKv9E5JWJGT1WeOaIIGAI25eaa80HRLrKJZxUieNp85tK4JT2FQO6H5Lm5S?startTime=1598556626000 Here is the link to the Livestream from Lab Prelab of 8/27/20 for section 8 posted by Dr. Hahn on 8/30 Sunday at 9:03 pm from her parent's Columbia, SC home (I cut out the part of the livestream of the lab where I handed out the safety quiz at the beginning and the part of the livestream where I went to the lab to see the lab for the lab map at the end of the class. Section 9 got me going over the entire 9 or 10 pages of the worksheet so section 9 should view this. If you were in section 8, you viewed all of this so you do not need to view it unless you missed zoom and was not in class. You can of course view it if I went over something too fast and you missed it and you want to re-see that portion of the prelab.) safety Quiz https://citadelonline.zoom.us/rec/share/upItL43Xx1xJULPEtxH2BIgCMJXYT6a80SNM8_Fbzhtq_RXyLOHN1CoMqBYBjRnT Here is the Livestream from the Lab Prelab of 8/20/20 Thursday afternoon posted by Dr. Hahn on 8/22/20 at 7:30 am from her parent's Columbia, SC home syllabus CHEM 113 Dr. Hahn's Schedule Fall 2020 YouTube Safety Video https://www.youtube.com/watch?v=3ELbwzqyuhs https://www.cs.seas.gwu.edu/faculty |