Announcements (hit the Refresh button on your browser to make sure that you are seeing the latest version of this page, and every other page on this website)


Dec 10, 2018
The results of the final exam, and your final points total and your grade for the class are now posted in the "Your Points" page. Click HERE. REMEMBER TO HIT REFRESH ON THE POINTS PAGE TO MAKE SURE THAT YOU ARE SEEING THE LATEST VERSION THAT IS DATED DECEMBER 10th 2018 (it is a large file, it may load slowly).

Now that the final points have been posted there is no way for you to change them, there is no extra credit, no way of changing any points for any reason, please do not ask. I have personally regraded all of the final exams for all students who were within 30 points of the grade cutoffs. There will be no further regrades. The only exceptions are if there has been a serious data entry error. If you find one then send me an email asap.

It has not escaped my attention that several of you have points totals that are close to the cutoffs, however, I have already looked at your final exams and I am very sorry, there are just no more points for you to earn. If this is you, I understand your frustration and you have my sympathy, but please remember that the majority of students who earned the higher grade scored more than 100 points more than you did.

If you want to look at your final exam then I will be in my office over the break, but not all of the time and I can't guarantee when I will be on campus and when I won't be. University rules state that you can look at the test but you cannot take it, I have to keep it for my records for 1 year. In the past I have allowed students to take their final exams, but I found out today that I was breaking the rules, oops!
You will also be able to look at your final exam at the beginning of next semester.

Many of you worked extremely hard in this class and I thank you for that. I very much enjoyed teaching this class this semester, and I enjoyed working with you all. I look forward to working with as many of you as possible next semester!

I hope that you all enjoy your break.

Dec 6, 2018
The Current Points page has been updated again with all points for all quizzes, all midterms 1 - 3, after all regrades, homework points and extra credit points, Click HERE. The regraded midterm #1 and midterm #2 and midterm #3 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points. PLEASE CHECK FOR ANY ERRORS!

Your final grade will be determined as follows: (midterm 1 points + midterm 2 points + midterm 3 points + quiz points + homework points + extra credit points + points for the final exam).  More...

Dec 2, 2018
Radical Reactions: You need to know ALL of the radical reactions, how to use them, the reagents/conditions etc. just like all of the other reactions, but you don't need to know the mechanisms for all of the reactions.

You need to know the Br2/light reaction mechanism.

You don't need to know the NBS/light mechanism, because we didn't cover it in lecture because it is complex.

You don't need to know theHBR/ROOR mechanism, because we didn't cover it in the review session.

Dec 2, 2018
My completed version of the notes for Halides has been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Dec 1, 2018
Today's 2nd Review Session for the Final Exam has now been posted.  More...
Nov 30, 2018
Today's 1st Review Session for the Final Exam has now been posted.  More...
Nov 30, 2018
Still struggling with R/S? Do what Tyler did a few years ago



Nov 30, 2018
The Current Points page has been updated again with all points for all quizzes 1 - 13 and all midterms 1 - 3, after all regrades, Click HERE. The regraded midterm #1 and midterm #2 and midterm #3 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points. PLEASE CHECK FOR ANY ERRORS!

Regraded tests, and all old tests, can be picked up any office hours.  More...

Nov 30, 2018
There will be TWO pre-test review sessions, the first will today, be Friday, Nov 30, 3PM - 5PM in SHESC-340. This is a weird place to hold a review but I can't find a room anywhere else on campus today, it seems that everybody is holding review sessions today! The SHESC building is at the North West corner of Tyler and Cady malls. The second will be Saturday 3PM - 5PM, this time in PS H-151. Both will cover different material and both will be recorded.
Nov 28, 2018
In lecture today I made an error at the top of page 6 of the notes. I said that the HO- anion would react slower than the HS- anion in an SN2 reaction in acetonitrile solvent (apologies, a senior moment!).

I got it right at the bottom of page 5 and also when discussing the energy diagram also at the top of page 6, I just assigned the 2 reactions at the top of page 6 incorrectly. And so your notes at the top of page 6 should look like this:


 More...

Nov 26, 2018
A student recently sent me some good questions about stereochemistry and reactions, and I wanted everyone to see the responses:

1) If we generate a molecule that has chiral centers then we must draw it with wedge and dash bonds at that location?
Ans: If you generate a molecule that has chiral centers you have to THINK about the consequences of this, if you have chiral centers then you have the possibility of stereoisomers, are there stereoisomers that you need to identify and specify?

First think about whether there are cis-/trans-isomers you need to differentiate, THEN, think about whether there are additional stereoisomer considerations as a consequence of the chiral centers.

If you need to differentiate cis-/trans- isomers using wedged/dashed bonds because the reaction is stereospecific then do so, then worry about whether you have a pair of enantiomers or a meso compound.

If you don't need to differentiate cis-/trans-isomers but you have chiral centers then you will need to add wedged/dashed bonds if the reaction stereospecific, i.e. syn- and anti-addition, and THEM you need to think about whether you have a pair of enantiomers or a meso compound.


2) If the molecule does not have a chiral center then we don’t use wedge and dash bonds?
Ans: If there are no chiral centers then there are no stereoisomers possible, UNLESS, cis-/trans-isomers are possible, but the only case of cis-/trans isomers you could have without chiral centers would be an alkene, so I guess the answer is no, no wedged/dashed bonds.

3) if the molecule has only single bonds then we don’t use wedge / dash bonds because rotation cancels out the stereochemistry (unless it has a chiral center)?
Ans: Right, in this case you can't have cis-trans isomers but you might have enantiomers if you have chiral centers.

Nov 26, 2018
The Current Points page has been updated with all points for all quizzes 1 - 13 and all midterms 1 - 3, after all regrades, Click HERE.The regraded midterm #1 and midterm #2 and midterm #3 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points. PLEASE CHECK FOR ANY ERRORS!

Regraded tests, and all old tests, can be picked up any office hours.  More...

Nov 21, 2018
To see the answer key to Quiz #13, Click HERE.
To see the final Quiz #14, Click HERE. Quiz #14 is a SURVEY QUIZ (free points!) and it is due Sunday Dec 2nd at 6PM.

Nov 21, 2018
Material and Studying for the final exam: Well, as you all know, because of multiple projector problems this semester we are quite a bit behind. We won't finish the Halides section of the notes this semester, but we must at least start this section. In the Halides section we cover two main classes or reaction, substitution and elimination. We will not get to elimination reactions this semester, we will do elimination at the start of next semester. This means that we will get through to the end of page 13 of the Halides notes.

I have removed all of the eliminations problems from the homework site (I think!) by converting them all into non-credit questions, as we did earlier in the semester. I have also removed the elimination questions for the two old final exams from 2016 and 2017 on the class website (but they were not removed from the answer keys).

I will post my version of the abbreviated halides notes next week.

Material for the final exam is usually roughly 60% since the 3rd midterm and roughly 40% "cumulative". Because we are a bit behind, this years final will be more like 70--75% since the 3rd midterm. The rest comes from big topics since the start of the semester. Look at the old final exams for a guide as to what these are, but they are usually: molecular orbitals, solving a spectrum problem, acid/base reactions, and perhaps some alkane conformations. For more study advice, CLICK HERE.

Nov 21, 2018
Here is an important message from Dr. Ara Austin, Clinical Research Professor in the School of Molecular Sciences at ASU:

Extra Credit Opportunity: I am sure that you have noticed that we have been asking you odd questions at the end of every quiz this semester. These questions relate to an education research program that we are running this semester. It is also connected to your homework site.

Now, I am formally asking you all to participate in this education research program, by giving us permission to use the data we have collected on the quizzes, also on your usage of the homework site and also from your exam grades this semester. We will use this data to better inform us about what works for you as students, so that we can design better courses in the future.

Important: We will not be looking at your individual quiz responses, or homework site usage or grades. We throw the data from the entire class together and just look for overall trends. Dr. Gould will not have access to your individual responses since we convert student ID numbers into an anonymous ID before we look at the data anyway.

If you choose to participate, you will receive extra credit worth 1% of the overall grade for the course. If you choose not to participate in the study, you will be given the opportunity to earn the same amount of extra credit by answering some questions requiring essay type of answers by contacting Dr. Gould directly. If you participate in the survey you also allow the researchers to use your homework site usage data, course grades and all other course assessment data. You must be 18 years or older to participate.

You have the right not to participate in this project, and to stop participating at any time. Your participation will be anonymous. Dr. Gould will not see any of your specific data, we are only interested in general class trends.

To participate and get the extra credit points, just visit the following link and digitally "sign" to participate: CLICK HERE.

To be included, you MUST "sign" or contact Dr. Gould before the end of the day on the last day of classes, Friday November 30th!

Nov 21, 2018
My completed version of the notes for Chirality has been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Nov 19, 2018
My completed versions of the notes for Alkenes and Radicals have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Nov 19, 2018
Today's lecture has been posted. There are several aspects to the topic of today's lecture that can only properly be explained using models. A video showing superimposibility, and lack of (same as posted for the last lecture is here:  Stereoisomers and the Superimposibility Test

A video showing the 2 enantiomers of lactic acid is here:  The Two Enantiomers of Lactic Acid

A video showing how to assign the absolute configuration, R and S, to the two enantiomers of lactic acid is here:  Assigning Absolute Configuration (R/S) to the Enantiomers of Lactic Acid

And two videos showing how to assign the absolute configuration to the example we did in class, that you would not have seen if you were not in class are here:  Determining configuration R/S using your hand  AND:   Determining configuration R/S using a model
 More...

Nov 18, 2018
The Current Points page, but it has finally been done, with your scores for the first 13 quizzes, AND, your points for the first and second midterm exams after all regrades, Click HERE. Please check to make sure there are no errors.

The regraded midterm #1 and midterm #2 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points.

Regraded tests, and all old tests, can be picked up any office hours.

Nov 17, 2018
I apologize for the delay in updating the The Current Points page, but it has finally been done, with your scores for the first 12 quizzes, AND, your points for the first midterm exams after all regrades, Click HERE. Please check to make sure there are no errors.

The regraded midterm #1 scores are in THIS SUMMARY ONLY, I have not gone back to the original list on the exam scores pages to update those too, take the Current Points page as the definitive list of points. Regraded midterm #2 scores are coming soon!

Nov 16, 2018
Today's lecture has been posted. In this lecture we start the chirality section of the notes and the best way to visualize chirality in the context of molecules is to talk about superimposibility, In lecture I showed a short video that illustrates superimposibility, but that was not captured properly in the lecture recording. Therefore, to see what that video was all about, click HERE.  More...
Nov 16, 2018
To see the answer key to Quiz #12, Click HERE.
To see the new Quiz #13, Click HERE. Quiz #13 is due Sunday Nov 18th at 6PM.
The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Nov 11, 2018
The results for midterm #3 are now posted on the Exam Scores page.  More...
Nov 9, 2018
For a video that explains backside attack for the example of the bromonium ion in the reaction of an alkene with Br2, click HERE

Nov 9, 2018
To see the new Quiz #12, Click HERE.
Quiz #12 is due Sunday Nov 11th at 6PM.
The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Nov 7, 2018
Another day, another projector failure, another lecture recorded in my office.  More...
Nov 6, 2018
If you are interested in a summer internship working in chemistry, Click HERE.
Nov 4, 2018
To see the answer key to Quiz #11, Click HERE.

Nov 3, 2018
Today's lecture, a review Session for Midterm #3 on acids/reactions/alkenes has now been posted.  More...
Nov 2, 2018
There may be some confusion about how much of the homework is relevant, or you should do, for 3rd exam. ALL of the problems in ALL of the subsections (through to the end of the Alkenes section) are relevant, all of the "credit" questions, don't do any of the questions you find by clicking the "Questions Not for Credit" tabs.
Nov 2, 2018
Because tomorrow is homecoming I am not able to reserve a classroom anywhere on campus for a review session tomorrow. BUT, I have keys :) So, assemble OUTSIDE PS H-150 at 3:30PM tomorrow if you want to come to the review session and I will open the door at that time, and if H-150 is in use we will go to H-151, and if that is in use to H-152 etc. one of these rooms will certainly be available.

The review session will be on basics of chemical reactions and what we have covered on alkenes so far. It will be recorded as usual.

Nov 2, 2018
To prepare for midterm #3, class today consisted of a review session on NMR, this is now posted on the recorded lectures page.

I distributed some spectrum problem in class today, to get a copy of these, Click HERE. We solved the first two of these problems in class. A recording showing how to solve the remainder of these problems, "Midterm #3 More Spectrum Problems Practice", has also been posted on the recorded lectures page.  More...

Nov 2, 2018
To prepare for midterm #3 you have previous exams from 2016 and 2017. You should not attempt the following questions from these old exams since we haven't covered those reactions yet:
Spring 2016: 4a, 4b, 4c, 4d
Spring 2017: 4b, 4c
 More...

Nov 1, 2018
My completed version of the notes for Reactions has been loaded on the lecture notes page. You can use this to make sure that your notes have no errors or gaps.  More...
Nov 1, 2018
The next midterm is Monday Nov 5th. Because we are somewhat off schedule, I have changed a couple of things in response to a good suggestion from one of your classmates. The final lecture before the exam, Lecture #30, which would normally have been given in class on Friday has already been recorded and posted on the recorded lectures page. Please watch that lecture online (this is what most of you do anyway).

To see a copy of the completed version for the part of the alkenes notes you are responsible for (up to the end of page 10), Click HERE.

Friday usual lecture time will be a review session on NMR spectroscopy. There will be one additional review session on reactions and alkenes on Saturday, November 3rd, time and place to be determined. Both review sessions will be recorded as usual.

I hope this slight rearrangement to the class procedures is not too disruptive, it is supposed to allow you to complete the lecture material a little earlier than you might otherwise.

Oct 31, 2018
To see the answer key to Quiz #10, Click HERE.
To see the new Quiz #11, Click HERE. Quiz #11 is due Sunday Nov 4th at 6PM.
The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Oct 30, 2018
Mainly due to the technical problems we had with the projector this semester, we are behind where we are supposed to be in the course. It is obvious that we will not finish the Alkenes section of the notes in time for midterm #3. It is never a good idea to change the date of any exam, and so we won't. Instead, we will cut the content for midterm #3. Midterm 3 will go through to the end of page 10 of the Alkenes notes. I am pretty sure that we will get there this week.

The problem is that the homework site has mixed together problems on material that we will cover, and also problems on material that we will not cover. Therefore, I have taken advantage of a feature of the homework site that we no longer use, non-credit questions. When you go to the relevant sections of the Alkenes homework, some of the problems will not appear on the first page you see, they will be available if you click the "Question not for credit" tab, however, these are the problems NOT to do (you won't be able to do them anyway!). After the midterm I will put these questions them "back" in the regular "credit" page as usual. The same thing applies to the practice exams for midterm #3, some of the questions have been "deleted" by pushing them back onto the "non-credit" page

Oct 28, 2018
The Current Points page has finally been updated to include your points for all quizzes from 1 - 10 (make sure that you see "Last Updated Oct 28, 2018, hit refresh a few times until you do), Click HERE.
Please check to make sure there are no errors.

Oct 26, 2018
To see the answer key to Quiz #9, Click HERE.
To see the new Quiz #10, Click HERE. Quiz #10 is due Sunday Oct 28th at 6PM.
The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Oct 21, 2018
The results for midterm #2 are now posted on the Exam Scores page.  More...
Oct 21, 2018
Because of the website problems this afternoon the deadline fro Quiz #9 will be changed to the end of the day, tomorrow, Monday October 22nd. I canlt do this until I am back on campus, and so it will open again sometime Monday morning.
Oct 21, 2018
There is an error in the notes. At the top of page 18, the 13C NMR spectrum has 5 peaks in the aromatic region but it should have only 4 peaks, This has now been corrected in the latest version of the completed notes that are now on the course website. Thanks to an eagle-eyed students for spotting that!

Oct 20, 2018
My completed version of the notes for Spectroscopy has been loaded on the lecture notes page. You can use this to make sure that your notes have no errors or gaps.  More...
Oct 18, 2018
To see the new Quiz #9, Click HERE.
Quiz #9 is due Sunday Oct 21st at 6PM.
The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Oct 18, 2018
Yesterday's lecture is now finally on the recorded lectures page. There were technical difficulties with the projection system again yesterday in class, consequently, I was not able to record the lecture in the classroom, as I usually do. This lecture was therefore recorded in my office. As is often the case when I record in my office, it is shorter than a normal class lecture.  More...
Oct 14, 2018
To see the answer key to Quiz #8, Click HERE.
Oct 14, 2018
To see my completed version of the IR spectroscopy notes, Click HERE
Oct 12, 2018
The midterm will cover material only up to the end of IR spectroscopy, there will be no NMR on the exam. On the homework site , do only the "Understanding IR" and "Interpreting IR" problems, do not do any other problems in the Spectroscopy section.
Oct 12, 2018
Today's lecture, a review Session for Midterm #2 on resonance has now been posted.  More...
Oct 12, 2018
Apologies, I need to cancel my 1 - 2PM office hours today, instead I will have office hours 8:30AM - 9:30AM.
Oct 11, 2018
Today's Review Session for Midterm #2, Alkanes Review, has now been posted.  More...
Oct 11, 2018
To see a review session on the theory and background of IR spectroscopy, Click HERE
To see a review session on interpreting IR spectra, Click HERE
I have also added video explanations for the majority of the IR homework problems on the homework site.

Oct 11, 2018
The review Session today will be 6:15 - 8:00PM in Wrigley Hall (School of Sustainability), room 101. The review will be recorded. The subject will be alkanes, nomenclature and conformations. Tomorrow in class I will review resonance. That leaves IR spectroscopy. I will post a previous review session on IR spectroscopy and will add as many video explanations to the IR spectroscopy section of the homework site as I can today.
Oct 10, 2018
To see the answer key to Quiz #7, Click HERE.
To see the new Quiz #8, Click HERE. Quiz #8 is due Sunday Oct 14th at 6PM. I will post the answer key to Quiz #8 later Sunday evening.

If you downloaded Quiz #8 before 9:30AM Thursday please download it again. I fixed an error in the question 8 in the quiz that was originally posted, the corrected quiz has "Quiz 8 - UPDATED" at the top of the first page.
Oct 10, 2018
Midterm #2 is next Monday, October 14th. Midterm #2 will cover material since the last midterm up to and including IR spectroscopy, there will be no NMR spectroscopy on midterm #2.

There are practice exams on the homework site, there are also old exams from the last two years of this class on this site, see the "Old Exams" link above.

Oct 10, 2018
Midterm #2 is next Monday, October 14th. Due to unfortunate scheduling I will actually be out of town this weekend. I am almost never out of town the weekend before a test and it won't happen again this semester, but here we are for this one.

I will have a pre-test review session on Thursday evening, after normal office hours, 6:15 - 8:00PM, location to be announced. Because I will not be here this weekend, Friday's lecture will also be a review session. Both of these review sessions will be recorded and posted on the class website as usual. Both will cover different topics. If there is any topic that is not reviewed at either of these sessions, then I will post other review video on the class website.

There will be a quiz due on Sunday that includes topics relevant to midterm #2.

In the mean time I will be adding additional explanation videos to the homework site problems as I have time, if you have any requests for specific hw problems that need further explanation let me know asap.

Oct 7, 2018
I previously posted an updated points summary that corrected the "extra credit error" for midterm #1. When I posted this updated summary, I forgot to also update the %Score and class positions, These have now also been updated as of this evening. As usual, make sure that you hit refresh a couple of times to make sure that you are seeing the most recent summary. Again, this version does NOT include any regrades, I have not had time to do those yet.  More...
Oct 7, 2018
My completed version of the notes for Alkanes has been loaded on the lecture notes page. You can use this to make sure that your notes have no errors or gaps.  More...
Oct 5, 2018
We have made a change to the homework site to help prepare you for the next midterm, to see a short video explaining this, click HERE
Oct 4, 2018
Each exam there will be an 5 pt. extra credit question taken from the "Real Life Topics" links on the Notes page. When I select these, I will take them from the sections of the notes that we have covered since the previous exam. However, for your midterm #1, I accidentally took a Real Life Topic from a section of the notes that we had not yet covered. This was a mistake, I didn't mean to do this. Therefore, I have given everybody the 5 points extra credit for this question. You can see your updated exam score on the Midterm Results page, make sure that you are seeing the most recent version of the points scores, it will have "UPDATED" in red text at the top of the page, if you don't see that, hit refresh on your browser a couple of times.

The new summary also corrects some data entry errors that appeared in the first version. This version does NOT include any regrades, I have not had time to do those yet.  More...

Oct 3, 2018
There is NO QUIZ this week due to fall break! There will be NO CLASS Monday Oct. 8th.
Sept 30, 2017
Technical problems continued this semester, and a couple of videos showing the chair conformations of cyclohexane that I tried to show in class today didn't in the recorded lecture! However, you can see these two videos at the first two links below. The rest of the videos will be useful as we get into the conformations of cyclohexane, they show you how to solve problems ion cyclohexanes, some with the model kit. One of the videos below show you how to build a cyclohexane using the HGS model kit.

Cyclohexane
Chair-chair interconversion for cis-1,4-dimethylcyclohexane (with permission : Prof. Stefan Immel, TU Darmstadt)

Building Cyclohexane Using a Model Kit

Substituted Cyclohexane
Chair Interconversion Misconceptions
Chair-to-Chair Interconversion Using an HGS Model Kit

Sept 28, 2018
To see the answer key to Quiz #6, Click HERE.
To see the new Quiz #7, Click HERE. I deleted the original posting for this quiz, make sure the quiz you are working with has the text "CORRECT VERSION" in red at the top of the first page.
Quiz #7 is due Sunday Sep 30th at 6PM.
The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Sept 26, 2018
Today's lecture is now on the recorded lectures page. There were technical difficulties with the projection system today in class, consequently, I was not able to record the lecture in the classroom, as I usually do. This lecture was therefore recorded in my office. As is often the case when I record in my office, it is shorter than a normal class lecture. The version of the lecture I recorded in my office includes the video introduction to Newman projections that is one of the videos on the list below.  More...
Sept 30, 2017
Learning how to solve Alkane conformation problems is tricky at first because of the 3-D nature of the problems. It is very helpful to use a molecular model kit when working with alkane conformations, and so I have a series of videos that may be helpful in this regard.

The first is an introduction of Newman projections and 3-D structures that I meant to show in class (it is included in the recorded version of Lecture 16, see above):
Introduction to Newman Projections

Next, a couple of videos showing how to work with Newman projections and sawhorse structures:
Newman Projection to 3-D or Sawhorse Structure
Newman Projection to 3-D or Sawhorse Structure using a Model Kit

We will spend a lot of time working with cyclic alkanes, in particular cyclohexane, and understanding how these work is much easier in video and with models:
Chair-chair interconversion for cis-1,4-dimethylcyclohexane (used with kind permission of Professor Stefan Immel, Technical University of Darmstadt)
Cyclohexane
Substituted Cyclohexane
Chair Interconversion Misconceptions
Building Cyclohexane Using a Model Kit
Chair-to-Chair Interconversion Using an HGS Model Kit

Sept 25, 2018
My completed version of the notes for Resonance has been loaded on the lecture notes page. You can use this to make sure that your notes have no errors or gaps.  More...
Sept 24, 2018
The results for midterm #1 are now posted on the Exam Scores page.  More...
Sept 20, 2018
To see the new Quiz #6, Click HERE.
Quiz #6 is due Sunday Sept 23rd at 6PM.

The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Sept 17, 2018
It was brought to my attention that question 3 on quiz 5 was ambiguous, the length order was not specified, it was supposed to be longest to shortest. Therefore, all answers to that question will be considered correct.
Sept 16, 2018
To see the answer key to Quiz #5, Click HERE.

Sept 15, 2018
Today's Review Session for Midterm #1, Review #2, has now been posted.  More...
Sept 14, 2018
Today's Review Session for Midterm #1 has now been posted.  More...
Sept 14, 2018
Midterm 1 will cover the material from the Bonding I and Bonding II sections of the notes, no resonance.
Sept 13, 2018
There will be TWO pre-test review sessions, the first will be Friday, Sept 14th, 3:30 - 5:00PM, in PS H-152. The second will be Saturday 3PM - 5PM, in PS H-152. Both will cover different material and both will be recorded and posted on this site.
Sept 13, 2018
The first midterm will be Monday Sept. 17th. To prepare for the test you will find three practice exams on the homework website. There are also exams from previous years that you can use as a guide to style, length etc and use as practice on this website, see the Old Exams link above.

Students in the onground class should come to LS A-191 to take the midterm. Students in the hybrid class MUST go to PS H-152, do NOT go to LS A-191. In both classrooms DO NOT SIT IN THE FRONT ROW, keep it empty (even if you usually sit there in class). We keep the front row empty so that late comers have a place to sit without climbing over and disturbing the rest of the class when they look for an empty seat.

Sept 11, 2018
There were some errors in the quiz scores, particularly quiz 2. The Current Points page has been updated (make sure that you see "Last Updated Sept 11, 2018, hit refresh a few times until you do), Click HERE.
Please check to make sure there are now no errors.

Sept 10 2018
My completed versions of the notes for Bonding I and Bonding II have been loaded on the lecture notes page. You can use these to make sure that your notes have no errors or gaps.  More...
Sept 10, 2018
Your quiz scores for quizzes #1 - #4 have been added to The Current Points page, Click HERE.
Please check to make sure there are no errors.

Sept 10, 2018
To see the new Quiz #5, Click HERE.
To see the answer key to Quiz #4, Click HERE.
Quiz #5 is due Sunday Sept 16th at 6PM.

The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Sept 7, 2018
Today's lecture is now on the recorded lectures page. There were technical difficulties with the projection system today in class, consequently, I was not able to record the lecture in the classroom, as I usually do. This lecture was therefore recorded in my office. As is often the case when I record in my office, it is shorter than a normal class lecture.  More...
Sept 7, 2018
To see the new Quiz #4, Click HERE.
To see the answer key to Quiz #3, Click HERE.
Quiz #4 is due Sunday Sept 9th at 6PM.

The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Sept 2, 2018
If you are interested in an honors project for this class, I have now posted information under the Course Info tab.  More...
Aug 29, 2018
Your quiz score for quizzes #1 and #2 have been added to The Current Points page, Click HERE.
Please check to make sure there are no errors.

Aug 29, 2018
To see the answer key to Quiz #1, Click HERE.
To see the answer key to Quiz #2, Click HERE.
To see the new Quiz #3, Click HERE.
Quiz #3 is due Sunday Sept 2nd at 6PM.
The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Aug 29, 2018
We are starting to look at aspects of molecular structure that are 3-dimensional, and are therefore a bit harder to understand, especially pi-bonding. The best way to visualize these things is to make a model, either mechanically or in a computer, as shown in the following small videos (click the titles in bold below).
Pi-Bonds and Anti-Bonds
Visualizing the sigma- and pi-bonds in ethylene using the HGS model kit
Pi-Orbitals in Triple Bonds

Here are some more very small videos that attempt to illustrate some of the 3-D aspects of molecular structure that we have discussed in class recently.
Tetrahedral Geometry
Trigonal Planar Geometry
Linear Geometry
Rotation and Single Bonds

Aug 24, 2018
Today's (Friday) lecture is now on the recorded lectures page. From now on the lecture postings will not be announced here, just go straight to the recorded lectures page.  More...
Aug 23, 2018
To see the second Quiz #2, Click HERE.
Quiz #2 is a chemistry quiz, it is due Sunday Aug 26th at 6PM. You will not be able to submit Quiz #2 until the deadline for Quiz #1 has passed.

The deadlines for all quizzes for the rest of the semester will be Sundays at 6PM.

Aug 23, 2018
Quiz Submission is now open, to see how to submit the quizzes, click HERE. You can submit any quiz as many times as you like, only the most recent submission is graded.
Aug 22, 2018
To see the first Quiz #1, Click
HERE.
All quizzes will be posted ion here in the form of a pdf file. You work in the quiz, decide your answers, and then submit the answers using the Submit Quiz link on the menubar at the top of the page. But don't try this yet! The Submit Quiz link will not open until Thursday morning, August 23rd, since I have to wait until after the drop/add deadline to get a settled class roster. I will post a short video showing how to submit the quiz on Thursday Aug 23rd.

Quiz #1 is a simple syllabus quiz. The deadline for submitting Quiz #1 is the end of the day, Friday Aug. Dec 24th. After that, all quizzes will be due on Sundays at 6PM.

Aug 22, 2018
Today's (Wednesday) lecture is now on the recorded lectures page.  More...
Aug 20, 2018
Today's lecture is now on the recorded lectures page.  More...
Aug 17, 2018
Today's lecture is now on the recorded lectures page. There were a lot of technical difficulties with the projection system today in class, consequently, class was shorter by 20 minutes and I was not able to record the lecture in the classroom, as I usually do. This lecture 1 was therefore recorded in my office.  More...
Aug 16, 2018
For a video introduction to the homework system, click HERE.
Aug 16, 2018
Apologies, I accidentally posted the fall 2017 syllabus today, I just uploaded the correct 2018 version as of 9:00PM. To get a copy of the 2018 syllabus for this class, click HERE.
Aug 16, 2018
Welcome to CHM 233 for the Fall 2018 semester! This website is for use by both Onground class students and also Hybrid class students. The website is now open, please browse around and download a syllabus.

The first day of classes is Friday August 17th. I will bring hard copies of the syllabus to class, and also a copy of the first few pages of the gapped notes

Aug 2, 2018
To get a copy of the syllabus for this class, click HERE.

This class uses "gapped notes". You MUST buy a copy of these from the bookstore, they take the place of a textbook, which is not required for this class. If you need a "starter" copy of the notes for the first lecture or two, you can click HERE to download them. This short set will only last 1 - 2 lectures at the most, after that you will need your own copy of the complete set.

Gapped notes from a previous semester WILL NOT WORK, since I tend to change them at least a little bit every semester.

Aug 2, 2018
The class has a Facebook page, click HERE.
Aug 2, 2018
This class does NOT use a textbook. This does not mean that you cannot use a textbook, by all means get one if you would like a reference book. A good book is Organic Chemistry by Paula Bruice, however, just about all of the organic chemistry textbooks are the same. Used older editions of textbooks are a just as good as the most recent editions and are available for just a few dollars on Amazon. It should be easy for you to find the appropriate reading and problems that relate to the material that we are covering in any textbook, although some textbooks do not cover pericyclic reactions, a second semester topic (the Bruice one does).

Many students will ask me if they should get the textbook. Unfortunately I am not able to give a satisfactory answer, since different students have very different needs. Some students really need to study from a textbook and appreciate learning a topic from a different perspective. Some students want a permanent textbook to study for the MCAT, for example. You have to make your own decision on this I am afraid. However, as mentioned above, I have found that most students in my classes tend not use the textbook.

This course does NOT USE A CLICKER, and you do NOT NEED the 2 additional books that are recommended by the bookstore.

Note that the lab is a separate course, check your lab course website for requirements for that course.


Aug 2, 2018
A Molecular Model Kit, IS REQUIRED for CHM 233. The best kits are the HGS 1013Alpha kit and the HGS 1003Alpha kit. The HGS 1013Alpha kit is available at the ASU bookstore. The least expensive place to buy the 1013Alpha kit seems to be direct from the manufacturer.

Do not buy ANY OTHER MODEL KIT, in particular, the Prentice Hall Molecular Model Set For Organic Chemistry (or other kits like it), they make pretty models but is terrible for CHM 233.

Aug 2, 2018
It is not possible for me to give an override into this class since I am not allowed to override the reserved seat assignments or the room capacity. If you really want to get into this class, come during the first week and be persistent in trying to register online. There will be a lot of drop/add activity during the first week, persistence usually pays off. Remember that the class is offered both in the regular onground lecture format and also as an online/hybrid version. Both classes are basically identical. If you are registered for the online/hybrid class you are welcome to attend lecture with the regular class.