CHM 256 Announcements
5/3/07
- I have posted “final” scores and
grades on the CHM
256 Spring 2007 Results link. I
am going to double check some scores, check regrade requests and corrected
Quiz 5 papers. However, let me know
if you think there is an error.
Also, if your entry is in red, you can raise your grade to the next
higher letter grade by turning in your corrected Quiz 5.
5/2/07
·
The
final exam has been graded. On the
whole, the class did better than the past two years. The following two tables show the results.
The first table shows the averages for the past three years. The raw score refers to the average out of 70
total possible points. The scores in
parentheses are the national mean scores for those versions of the exam. The total and % total values will be filled
in after I check the clicker points.
Each raw score was multiplied by the factor indicated in the 2nd
table to come up with a score out of 200 points. For example, if your raw score was 38, it was
multiplied by 4.07 to give a final exam score of 154.7.
|
Year |
ACS Raw |
Final |
Total |
%Total |
Grade |
|
2005 |
31.75 (42) |
134.3 |
421.8 |
76.6 |
C |
|
2006 |
31.6 (42) |
133.0 |
391.9 |
74.6 |
C |
|
2007 |
32.6 (39) |
141.0 |
|
|
|
Spring 2007
|
Raw Score |
51 or more |
50 |
49 |
48 |
47 |
46 |
45 |
44 |
43 |
42 |
41 |
|
Multiplier |
3.63 |
3.66 |
3.69 |
3.71 |
3.74 |
3.77 |
3.80 |
3.83 |
3.86 |
3.90 |
3.94 |
|
Score/200 |
185.1 |
183 |
180.8 |
178.1 |
175.6 |
173.4 |
171 |
168.5 |
166 |
163.8 |
161.5 |
|
Raw Score |
40 |
39 |
38 |
37 |
36 |
35 |
34 |
33 |
32 |
31 |
30 |
|
Multiplier |
3.98 |
4.02 |
4.07 |
4.11 |
4.15 |
4.19 |
4.23 |
4.30 |
4.38 |
4.46 |
4.53 |
|
Score/200 |
159.2 |
156.8 |
154.7 |
152.1 |
149.4 |
146.6 |
143.8 |
141.9 |
140.2 |
138.2 |
135.9 |
|
Raw Score |
29 |
28 |
27 |
26 |
25 |
24 |
23 |
22 |
21 Or less |
|
|
|
Multiplier |
4.61 |
4.67 |
4.77 |
4.84 |
4.92 |
5 |
5.08 |
5,15 |
5.24 |
|
|
|
Score/200 |
133.7 |
130.8 |
128.8 |
125.4 |
123 |
120 |
116.8 |
110.0 |
104.8 |
|
|
The range of raw scores was 58 (93rd percentile
nationally), 53 (85th), 52, 52 (83rd), 51 (81st),
47, 46, 45, 45, 44, 44, 42, 40, 40, 38, 37, 37, 36, 36, 34, 34, 34, 34, 32, 32,
32, 31, 31, 31, 30, 30, 30, 30, 29, 29, 28, 28, 28, 28, 28, 27, 27, 27, 27, 26,
26, 26, 26, 26, 25, 25, 25, 24, 24, 23, 23, 23, 23, 22, 22, 19, and 19. After multiplying by the appropriate factor,
the range of scores was 210.5, 192.4, 188.8, 188.8, 184.6, 175.8, 173.4, 171,
171, 168.5, 168.5, 163.8, 159.2, 159.2, 154.7, 152.1, 152.1,
149.4, 149.4, 143.8, 143.8, 143.8, 140.2, 140.2, 140.2, 138.3,
138.3, 138.3, 135.9, 135.9, 135.9, 135.9, 134.8, 133.7, 133.7, 130.8, 130.8,
130.8, 130.8, 130.8, 128.8, 128.8, 128.8, 128, 125.8, 125.8, 125.8, 125.8,
125.4, 123, 123, 123, 120, 120, 116.8, 116.8, 116.8, 116.8, 113.3, 113.3, 99.6,
and 99.6.
If you provide me
with an ID # of your choice by e-mail, you can see all your final scores at the
following link. I need to work out the clicker points before I post the
remaining scores. Currently, I have only
the final exam scores. I will highlight
in red the scores that can be improved by making corrections to your take home
quiz. Corrections for Quiz 5 are due
Thurs. May 3 at 6:00 PM. CHM 256 Spring 2007
Results
4/27/07
- All
material covered today will be considered extra credit on the final. Material covered before today will be
considered regular credit on the final.
4/25/07
- The
exam will be Monday April 30 1– 3 PM in SB 168. It will cover the entire year of organic
chemistry. However, I suggest that
you study all material towards the end of the semester. On Friday, I will
announce what will be extra credit material. Then look over the remainder
of the course. It will help to
review nucleophilic substitution and elimination from last semester. The exam will be “curved” to
take into account that it covers the entire year and to treat material at
the end as extra credit. You need
to know all mechanisms covered on exams and quizzes this semester. You will also need to know the Aldol
Condesation mechanism and Acid Catalyzed Esterification. I have posted a link providing more
information about the final. Final Exam Information
- Quiz
4 has been graded. I made each
question worth 2.6 points. The
average was 15.2. The range of
scores was 26, 23.4, 23.1, 20.8, 20.8, 20.8, 20.8, 20.8, 20.5, 18.2, 18.2,
18.2, 18.2, 18.2, 18.2, 18.2, 18.2, 15.6, 15.6, 15.6, 15.6, 15.6, 15.6,
15.6, 15.6, 15.6, 15.6, 15.6, 15.3, 15, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 10.4, 10.4, 10.4, 10.4, 10.4, 10.4, 10.4, 10.4, 10.1, 7.8,
7.8, and 7.5.
|
Year (Quiz 5 for Years 2001-2005) |
Average |
|
2007 |
15.2 |
|
2006 |
18.5 |
|
2005 |
17.8 |
|
2004 |
17.2 |
|
2003 |
14.4 |
|
2002 |
14.3 |
|
2001 |
15.7 |
- The
Make Up Exam and the Make Up Quiz have been graded. Each question on the quiz was worth 2.6
points. Due to typos, 2 questions
were removed form the exam and each question was then worth 5.94 points
for 20 remaining questions. The Make
Up Exam average was 66.5. The Make
Up Quiz Average was 14.4.
|
Year |
Average Make Up Exam |
Average Make Up Quiz |
|
2007 |
66.5 |
14.4 |
|
2006 |
68.4 |
15 |
|
2005 |
61.8 |
14.8 |
|
2004 |
64.6 |
13.1 |
|
2003 |
69.2 |
13.4 |
|
2002 |
72.2 |
15.2 |
|
2000 |
46.7 |
14.3 |
|
1999 |
44.3 |
14.8 |
4/23/07
- We
will cover topics form Chapters 18 and 19, but I do not suggest that you
read them since we will only be covering portions of them. However, you may want to do those
problems from Problem Sets 14 and 15 that pertain to the notes.
- The
new cutoffs for the course will be >88% A, >78% B, >65% C,
>58% D, and <58% F.
- Corrections
for Quiz 5 will be due Thurs. May 3 at 6:00 PM.
4/20/07
- New
cutoffs will be announced next week.
- Exam
3 has been graded. The average was
65.4. Although the average was
lower compared to the previous 2 exams, 21 of the 48 who took the exam
matched or improved there scores form a previous exam. The range of grades
was 100, 100, 100, 95, 95, 90, 90, 85, 85, 80, 80, 80, 80, 80, 75, 75, 75,
70, 70, 65, 65, 65, 65, 65, 65, 65, 60, 60, 60, 55, 55, 55, 55, 55, 55,
50, 50, 50, 50, 50, 50, 45, 45, 40, 35, 35, 35, and 35.
|
Year |
Year |
|
2007 |
65.4 |
|
2006 |
65.7 |
|
2005 |
69.5 |
|
2004 |
70.5 |
|
2003 |
72.1 |
|
2002 |
73.4 |
|
2001 |
73.5 |
|
2000 |
61.1 |
|
1999 |
66.2 |
|
1997 |
57.4 |
|
1996 |
43.8 |
4/19/07 > 7:30 PM
- Note
Set 20 has been posted.
- The
answer keys to Exam 3 have been posted.
- I
have corrected the Old Exams and Quizzes page. Both Exam 3 and the Make Up exam from
last year appear there now.
- I’m
handling the course differently this year.
There is no equivalent Quiz 4 form last year. Look over last year’s make up exam
to see what type of questions may be asked.
4/19/07
- Quiz
5 (the take home quiz) has been graded.
Remember that you can recover points. The average was 20.8/25. The range of scores was 25, 25, 25, 24.8,
24.6, 24.5, 24.5, 24.5, 24.5, 24.5, 24.3, 24.3, 24.2, 24.1, 24.1, 24,
23.9, 23.9, 23.9, 23.7, 23.7, 23.7, 23.6, 23.5, 23.5, 23.5, 23.4, 23.3,
23, 23, 22.8, 22.7, 22.6, 22.2, 22.2, 20.9, 20.8, 20.4, 20.3, 20.1, 20.1,
20, 19.6, 19, 18.9, 18.6, 18.6, 18.6, 18.5, 17.2, 17.1, 15.6, 15.6, 15.3,
15.2, 14.5, 14.3, 13.1, 12.3, 11.7, 10.5, and 6.8.
4/18/07
- Quiz
4 will be given Monday April 23. It will cover all of Chapter 16 and that
portion of Chapter 17 covered last Monday.
It will cover problem sets 12 and 13. You will need to know the following
mechanisms
- Addition of water
under acidic, basic and neutral conditions
- Hemiacetal and acetal
formation under acidic conditions
- Mutarotation
- Formation and
hydrolysis of glycosides (and hydrolysis of polysaccharides)
- Addition of nitrogen
compounds under acidic conditions
- Organometallic reagents reacting with carbonyl compounds
- Reaction of LiAlH4 with ketones/aldehydes
- Enol and enolate formation
- Note
that I added the reaction of LiAlH4 with ketones/aldehydes
mechanism for the make up exam too.
4/16/07
- The
questions from this morning’s review session have been posted.
4/16/07
- Note
Set 19 has been posted.
- I
have made corrections to the Powerpoint slides. The ylide structures have been corrected
for the Wittig reactions and the lactose structure in Set 16 was meant to be for b-lactose and the slide now says b-lactose.
- Quiz
4 will be given Monday April 23.
Remember it is optional since you drop the lowest of the 4 in class
quizzes.
4/13/07
> 3:30 PM
- Exam 3 will cover Chapter 16 and Problem Sets 12 and 13 through
today’s lecture but not including oxidation.
- The make up exam and quiz will be given in CM 159 (not SB 168)
and will be given between 11:00 AM and 3:20 PM.
4/13/07
- We are now approaching the end of the semester. If you have been keeping up, then it
might no be too crazy. However just as I warned in the syllabus, if you
need to use the make up exam and make up quiz, it might be really
tough. Here are the upcoming exams
and quizzes.
- Exam 3 will be Wed. April 18.
Exam 3 will cover Chapters 15 and 16 and Problem Sets 11, 12, and
13. I will make a decision by the
end of today as to how much of Chapter 16 will be covered in the
exam. It will also cover the
following mechanisms no matter what I decide about the rest of Chapter
16.
- Addition of water
under acidic, basic and neutral conditions
- Hemiacetal and
acetal formation under acidic conditions
- Mutarotation
- Formation and
hydrolysis of glycosides (and hydrolysis of polysaccharides)
- Addition of
nitrogen compounds under acidic conditions
- Addition of Organometallic compounds to ketones and
aldehydes.
- The Make Up Exam (Sat. April 21, CM 159 11:00 AM – 3:20
PM will cover only NMR and NMR related problems from Chapter 15 and
Problem Set 11. It will be less
than 50% of the exam. The
remainder of the exam will cover Chapter 16 and Problem Sets 12 and 13.
It will also include whatever is covered in Chapter 17 and Problem Set 14
on Monday. The following reaction
mechanisms will be covered
- Addition of water
under acidic, basic and neutral conditions
- Hemiacetal and
acetal formation under acidic conditions
- Mutarotation
- Formation and
hydrolysis of glycosides (and hydrolysis of polysaccharides)
- Addition of
nitrogen compounds under acidic conditions
- Organometallic reagents reacting with carbonyl compounds
- Reaction of LiAlH4 with ketones/aldehydes
- The make up quiz will cover the reactions of aromatic
compounds from Chapters 13 and 14 and Problem Sets 8, 9, and 10. You will need to know the electrophilic
and nucleophilic aromatic substitution reaction mechanisms.
- We may start Chapter 17 on Monday. You may want to start Problem Set 14 and
start reading Chapter 17.
- The questions from last night’s review session have been
posted.
4/12/07
- The
answer key to Problem Set 13 has been posted on the Review Supplemental
Handout, etc. page.
- I
have posted the molecular formulas for the problem spectra at the Review
Session Questions website.
- As
requested, I have posted Quiz 5 on the Review, Supplemental Handouts, etc.
Page under Supplemental Handouts.
By saving it as a word file, you may type in answers and structures
if you wish.
- Here
is an example of how you want to fill out an entry in the 1H
NMR table for Quiz 5. The circled
H’s represent the hydrogens in a given absorption.
|
Chemical Shift (ppm) |
Integration |
Multiplicity |
Structural Assignment |
|
2.3 |
2 H |
quartet |
|
4/9/07
- More old exams and quizzes have been posted.
- Note Sets 17 and 18 have been posted.
·
In Chapter 16, I
won’t cover 16.4 and 16.5 in lecture because they are essentially topics
we have covered earlier. However, you
should still read them for review and also take particular note of why
conjugated aldehydes and ketones absorb at lower frequencies in the IR. Also,
the following sections of Chapter 16 will not be covered and unlike 16.4 and
16.5 will not be covered in upcoming and exam.
- Reaction of bisulfite with aldehydes and ketones (cyanide
still required) in Section 16.8
- Oxidative Cleavage of 1,2-Diols 16.15b
- Oxidation of Thiols and Other Sulfur Compounds 16.16.
- Upon request, I will place links to student
science/professional clubs on the course home page.
4/2/07
- We may start Chapter 16 on Wed.
Start reading it and start Problem Sets 12 and 13. We will also
cover carbohydrate chemistry in Ch. 16.
You will also want to read Chapter 22 Polyfunctional Natural
Products: Carbohydrates pp. 1223-1238, 1240-1245, 1260-1266.
- Problem Set 13 has been posted.
- In today’s review session and for the next 2 or 3 (Thurs.
4/5, Mon. 4/9 and Thurs 4/12) I will go through spectra just like the
one’s you received for your take home quiz. I have posted the 4 sets of spectra on
the review page. They are listed as
problems 4, 13, 17, and 18 respectively.
3/30/07
- Quiz 5 (the take home quiz) will be handed out at the end of
class today. Be sure to pick one
up. It will be due April 16. Please
the instructions on the quiz. As mentioned
in the quiz itself, some spectra may contain apparent anomalies that may
be confusing. For e.g., sometimes
for reasons due to resonance or the additive effect of chemical shifts,
peaks positions may appear outside the normal range. Multiplets may overlap. The integration
does not add up. If you think there
is an anomaly in your spectra, you can ask me about it.
3/29/07
- A correction has been made to the syllabus; the final has been
scheduled for Monday April 30, 1 – 3 PM. It originally stated Monday May 1.
- Note Set 16 has been posted.
- The questions from the review sessions on 3/22 and 3/26/07 have
been posted.
3/26/07
- Note
Set 15 has been posted.
3/22/07
- If possible, please print out the table “Summary of Major
Group Frequencies for IR” from the Review, Supplemental Handout, and
etc. page. If you can’t I
will provide some copies for the class.
- Exam 2 has been graded.
The average was considerably lower than the last exam. After much consideration, I balanced the
fact that I thought I gave a more difficult exam vs. the fact that many of
the questions came from the problem sets.
I added 5 points to each score which gives an average of 73.1 which
is comparable to the first exam.
The range of scores was 110, 100, 100, 100, 100, 100, 100, 95, 95,
90, 90, 90, 90, 90, 90, 90, 90, 85, 85, 85, 85, 85, 85, 85, 84.7, 80, 80,
75, 75, 70, 70, 70, 70, 70, 70, 70, 70, 69.7, 65, 65, 65, 65, 65, 62.3,
60, 60, 60, 60, 60, 50, 50, 45, 45, 45, 45, 45, 45, 45, 40, 40, and 40.
3/21/07
- The answer keys to the exam have been posted.
3/20/07
- The questions from yesterday’s review session have been
posted.
3/19/07
- After the exam on Wed., start reading Chapter 15 and start
Problem Set 11.
- Quiz 3 has been graded.
The average was 19.9. The
range of scores was 29.9, 29.9, 27.6, 27.4, 27.4, 25.3, 25.3, 24.9, 24.9,
24.9, 24.9, 24.9, 23, 23, 22.8, 22.6, 22.4, 22.4, 22.4, 22.4, 22.2, 20.7,
20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.5, 19.9, 19.9, 19.9,
19.9, 19.9, 18.4, 18.4, 17.4, 16.1, 14.9, 14.9, 14.9, 14.9, 14.9, 13.8,
11.5, 11.5, 11.5, 10, 9.2, 9.2, and 5.
Since there was a typo which led to there being no correct answer
for #8 on Form B, I threw out that question. Then I multiplied the
remaining correct answers out of 12 questions by 2.49 points. This gives the quizzes the same overall
total. If you think that this
solution to the typo in question #8 may adversely affect your grade let me
know and perhaps I can provide a remedy.
- Previous averages are shown in the following table. Due to changes in the course, it only
covers 4 years.
|
Year |
Quiz 3 Average |
|
2007 |
19.9 |
|
2006 |
18.0 |
|
2005 |
16.3 |
|
2004 |
17.8 |
3/16/07
- The keys to Quiz 3 have been posted.
3/16/07
- The structure for pyrophosphate was incorrect in slides 72 and
73 of Note Set 10. They have been
corrected the structure was corrected for last year’s quiz
also. It is also shown below
If
you’re wondering why I have drop exams and quizzes and give extra credit
on is because I make mistakes too.
- The questions from last night’s review session have been
posted.
3/14/07
- Remember that Quiz 3 will be given this Friday.
- Read Chapter 14 and do problem Set 10.
- Exam 2 will be given Wed. March 21. It will cover Chapter 12
and those sections of Chapters 13 and 14 covered through Friday. Only those reactions covered in Chapters
13 and 14 that have been covered in the notes through Friday will appear
on the exam. It will also cover
Problem Sets 7, 8 (only those problems pertaining to Chapter 12 and synthesis
problems), 9, and 10 (only those problems that have been covered in
lecture through Friday.) The
following mechanisms may appear on the exam
- The reaction of 3-methyl-3-buten-1-ol pyrophosphate +
3-methyl-2-buten-1- pyrophosphate to geraniol pyrophosphate.
- Electrophilic Aromatic Substitution
- Formation of electrophiles for EAS
3/13/07
- The questions from Monday’s review session have been
posted.
3/8/07
- The questions from the 3/1/07 review session have been posted.
- The answer key to Problem Set 8 has been posted.
- Answer keys have also been posted on the bulletin board.
- Update: Quiz 3 will be given Friday March 16. It will cover
Chapters 12 and 13 and Problem Sets 6, 7, 8, and 9. You will need to know the mechanism for
the Biosynthesis of Terpenes (i.e. the reaction of 3-methyl-3-buten-1-ol
pyrophosphate + 3-methyl-2-buten-1- pyrophosphate to produce geraniol
pyrophosphate.) Questions about the
specific reactions of aromatic compounds and radicals in general will not be on the quiz. However, since there are synthesis
questions on the quiz, then you will need to remember reactions from
previous chapters including radical reactions. Also, the nomenclature of aromatic
compounds will be on the quiz.
3/7/07
- Note Sets 13 and 14 have been posted.
3/2/07
- Quiz 2 has been graded.
The average was 18.8/25. The
range of scores was 27.6, 27.6, 27.4, 25.3, 25.3, 25.3, 25.3, 25.3, 25.3,
25.1, 25.1, 23, 23, 23, 23, 23, 23, 23, 23, 20.1, 20.1, 20.1, 20.1, 20.1,
20.1, 20.1, 20.1, 19.9, 19.9, 19.9, 18.4, 18.4, 18.4, 18.4, 18.2, 18.2,
16.1, 16.1, 16.1, 16.1, 16.1, 15.9, 15.9, 13.8, 13.8, 13.8, 13.8, 13.8,
11.5, 11.5, 11.5, 11.5, 11.5, 9.2, 9.2, 6.9, and 6.9.
|
Year |
Quiz 2 |
|
2007 |
18.8 |
|
2006 |
20.3 |
|
2005 |
16.2 |
|
2004 |
15.2 |
|
2003 |
15.4 |
|
2002 |
15.8 |
|
2001 |
14.2 |
|
2000 |
11.9 |
|
1999 |
14.2 |
|
1997 |
13.3 |
|
1996 |
11.2 |
3/1/07
- Note Set 12 has been posted.
2/28/07
> 7:30 PM
- The
answer keys to Quiz 2 have been posted.
2/28/07
·
Quiz 3 will be given
Friday March 16. It will cover Chapters 12 and 13 and Problem Sets 6, 7, 8, and
9. You will need to know the mechanism
for the Biosynthesis of Terpenes (i.e. the reaction of 3-methyl-3-buten-1-ol
pyrophosphate + 3-methyl-2-buten-1- pyrophosphate to geraniol pyrophosphate.
2/26/07
- Note Set 11 has been posted.
- Remember that Quiz 2 will be given Wed. There was a typo in the notes calling
Conjugation Chapter 11. Conjugation
is in Chapter 12. That material
will not be covered on the quiz.
When I say Chapter # is being covered on an exam or quiz, I am
always referring to the text.
Radicals are being covered in Chapter 11.
- We are almost finished with Chapter 12 and will probably start
Chapter 13 on Wed. Start reading
Chapter 13 Conjugation and Aromaticity and Start Problem Set 9.
- The questions from today’s review session have been
posted.
- I must attend a workshop all morning Wed. If you have questions about the quiz,
please ask them before Wed, morning.
2/23/07
- The questions from last night’s review session have been
posted on the review, Supplemental Handout, etc. page.
2/21/07
> 6 PM
- The “s” in s-cis and s-trans-1,3-butadiene stands
for “single”, which refers to rotation about the C-C single
bond.
2/21/07
- Quiz 2 will be given Wed. Feb. 28. It will cover Chapter 11, Problem Set 5
and those portions of Problem Set 6 that pertain to radicals. You will also need to know the following
mechanisms
o Photohalogenation of Alkenes
o Free Radical Addition of HBr to Alkanes
o Free Radical Chain Polymerization
·
Quiz 2, Quiz 3, and
Exam 2 from last year and their corresponding keys have been posted on the
Review, Supplemental Handout, and etc. page.
·
Problem Set 8 for
Chapter 12 has been posted on the Review, Supplemental Handout, and etc. page.
·
The questions from Monday’s
review session have been posted.
2/20/07
- Note
Set 10 has been posted.
2/19/07
- Start
reading Chapter 12 and start Problem Set 7.
- Exam
1 has been graded. The average was
73.7. The range of scores was 105,
105, 100.8, 100.8, 96.6, 96.6, 96.6, 96.6, 92.4, 92.4, 92.4, 92.4, 92.4,
88.2, 88.2, 88.2, 84, 84, 84, 79.8, 79.8, 79.8, 79.8, 75.6, 75.6, 75.6,
75.6, 71.4, 71.4, 71.4, 71.4, 67.2, 67.2, 67.2, 67.2, 67.2, 67.2, 63, 63,
63, 63, 63, 63, 63, 63, 63, 63, 58.8, 54.6, 54.6, 54.6, 50.4, 50.3, 46.2,
42, 37.8, and 33.6.
|
Year |
Exam 1 Average |
|
2007 |
73.7 |
|
2006 |
70.0 |
|
2005 |
75.1 |
|
2004 |
75.9 |
|
2003 |
68.7 |
|
2002 |
76.6 |
|
2001 |
75.6 |
|
2000 |
47.5 |
|
1999 |
57.4 |
|
1997 |
66.3 |
|
1996 |
64.3 |
2/16/07 > 2:30 PM
- The answer keys to Exam 1 have been posted on the Re4view,
Supplemental Handout, and etc. page.
2/15/07
- As you might expect, Exam 1 was postponed and will be given
this Friday, Feb. 16. As much as
possible, everyone must sit every other seat during the exam.
- Note Set 9 has been posted.
2/12/07
- Questions from the review sessions on 2/8/07 and 2/12/07 have
been posted.
2/8/07
> 3:00 PM
- The answer key to Problem Set 6 has been posted.
2/8/07
- Note Set 8 has been posted.
I apologize for the last notice.
2/7/07
- If you miss a class where clicker questions were asked, please
let me know so that this won’t count against you at the end of the
semester when I tally clicker points.
However, if it appears that you are missing a number of classes,
you will need to provide documentation from a doctor, etc. to avoid losing
those clicker points.
- Problem Set 6 has been posted on the Review, Supplemental
Handout, and etc. page. It contains
questions for both Chapter 10 and 11.
- Exam 1 will be given Wed. Feb. 15. It will cover Chapters 8, 9, and 10 and
Problem Sets 1 through 4 and part of 6.
Of course those problems from Chapter 11 in Problem Set 6 will not
be covered. You will also need to
know the following mechanisms
- Addition of X2
to alkenes
- Addition of X2
and H2O (ROH) to alkenes
- Acid catalyzed ring
opening of oxiranes
- Base catalyzed ring
opening of oxiranes
- Carbocation
Rearrangements
- Addition of H-X to
Dienes (also acid catalyzed hydration)
- Hydrogenation
(general mechanism)
- Pay close attention
to question # 2 on Problem Set 6.
You are expected to know the stereochemistry of addition
reactions. The mechanism or what
has been presented about the mechanisms of the reactions must be used to
predict the proper stereoisomers.
Work through them carefully.
You might have to write the mechanism to get the correct
answer. Two, possibly three of
this type of reaction may appear on the exam.
2/6/07
- Note Set 7 has been posted.
2/5/07
> 3:00 PM
- Start reading Chapter 11 and start Problem Set 5.
- The questions from today’s review session have been
posted.
2/5/07
- Quiz 1 has been graded.
The average was 18.8/25. The
range of scores was 27.5, 27.5, 27.5, 25, 25, 25, 25, 25, 25, 25, 22.5,
22.5, 22.5, 22.5, 22.5, 22.5, 22.5, 22.5, 22.5, 22.5, 22.5, 22.5, 22.5,
22.5, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17.5, 17.5, 17.5, 17.5,
17.5, 17.5, 17.5, 17.5, 17.5, 17.5, 15, 15, 15, 15, 15, 15, 15, 12.5,
12.5, 12.5, 12.5, 10, 10, 10, 10, 10, 7.5, and 5.
|
Year |
Quiz 1 |
|
2007 |
18.8 |
|
2006 |
21.2 |
|
2005 |
18.9 |
|
2004 |
15.0 |
|
2003 |
11.9 |
|
2002 |
14.8 |
|
2001 |
11.0 |
|
2000 |
13.7 |
|
1999 |
13.8 |
|
1997 |
14.6 |
- A correction to the 3rd reaction has been made on
the Review Session Questions 2/1/07.
The 2nd product was incorrect. The new structure results from a carbocation
rearrangement.
2/2/07
- The answer keys to Quiz 1 have been posted. They have not been completely graded,
but it does appear that average is ~18.8/25.
- The questions from Thursday night’s review session have
been posted.
1/30/07
- Two new questions were used in Monday’s review
session. They are posted as a link
in the Review Supplemental Handout etc. section. One involves bond dissociation energies
and the other is based on #9.36 of Problem Set 3.
1/29/07
- Note Set 6 has been posted.
- Remember the quiz on Wed.
1/26/07
- The
questions from Thursday night’s review session have been posted on
the Review, Supplemental Handout etc. page.
1/25/07
- The answer key to Problem Set 2 has been posted on the Review
Supplemental Handout etc. page and on the bulletin board outside my
office.
1/24/07
- Note Set 5 has been posted.
- Quiz 1 will be given Wednesday, January 31st. It will cover Chapters 8 and 9 and
Problem Sets 1, 2, and 3. You will
also need to know the following mechanisms
- Addition of H-X to alkenes
- Acid catalyzed addition of H2O to alkenes
- Addition to Dienes (H-X or H2O)
1/18/07
- Problem Set 2 has been posted on the Review, Supplemental
Handout, and etc. page.
- In response to some student evaluation comments that some
people could not come to any review sessions due to work and family
schedules, I have added a link on the Review, Supplemental Handout, and
etc. page that will provide the questions I will use at review
sessions. I have already provided
the questions used in last night’s session. Only the questions will
be provided. Just like the people
who are able to attend, you must make an attempt at the questions before I
give the answers. This will require
that you as an individual or in small groups make appointments with me to
go through your answers.
1/17/07
- Please bring the bond dissociation energies table from the
Review, Supplemental Handout, etc. page so that we can use it to answer a
clicker question on Friday.
- If you could not attend class or could not use your clicker on
a given day, let me know so that I won’t take off points at the end.
1/15/07
- We may start Chapter 9 on Wed.
Start reading Chapter 9 in the text.
- Note Sets 3 and 4 have been posted.
- Corrections and additions have been made to Note Set 2. You may want to check them to print out
extra pages. I have made some
additions to the Chapter 9 portion of the notes.
1/11/07
- Everyone will need to enroll and use their clickers starting on
Wed. Jan. 17. I will start counting
the clicker points then.
1/10/07
- Note Set 2 has been posted.
- The key to Problem Set 1 has been posted on the bulletin board
outside my office. The solutions
manual should be on reserve at the library.
- Last year’s 1st exam and 1st quiz
have been posted.
1/8/07
- Start
reading Ch. 8 and start Problem Set 1 (see the syllabus).
1/5/07
- You can now register your clickers through WebCT. Follow the instructions on the link on
the home page. Should you need it,
the class key is F25606H762.
1/4/07
- The
syllabus and the 1st set of PowerPoint notes have been
posted.
- The
CHM 255 website is set up as a link on the CHM 256 home page so that you
may look at the notes and material from last semester. This may particularly help those who did
not take the 1st semester of organic from me.
- Your
finals exams and quiz 5’s can be picked up at the end of lecture. At
the CHM 255, there is a table of final grades with point totals, final
exam scores, clicker points, etc.
They are listed in descending order based on final point
total. If you want to compare the
scores you think you have with what I have, e-mail me and I will tell what
row you are in the table. If there
is a discrepancy and you think it will change your letter grade, let me
know. Grades can be changed. CHM 255 Final Grades
- There
will be no review sessions this week.
All review sessions will be in SB 476 at the times listed in the
syllabus.
If you have comments or suggestions, email me at maloneyv@ipfw.edu