CHM 255 Announcements

12/20/06

  • I have posted the range of grades for Quiz 5, Quiz 5’, the final exam, the clicker points and the final % at the following link.  Final Scores
  • Your final and Quiz 5’ can picked up at the chemistry office during break.

12/14/06

  • Since the final exam had more nulceophilic substitution and elimination, it was more difficult then recent years.  To take this account, the cutoffs will be lower than recent years.  The cutoffs are now A 418 points (88%), B 370 (77.9%), C 314 (66.1%), D 279 (58.7%), and F < 279 (58.7%).  This includes clicker points.  Everyone received 10 points for answering >50% of the questions correctly. However, a number of people did not receive the full 15 points for answering > 80% of the questions.  I took into account all people who approached me with a specific problem with clickers or absences during the semester, and they did not lose points for those days.  If you lost points and have a work or related or medical excuse, I must have a note from your employer or doctor.
  • The exams have been graded.  Each question was worth 4 points.  The were 160 possible points.  The average was 91.3/150.  The range of scores was 148, 144, 144, 140, 140, 136, 136, 132, 132, 128, 128, 124, 124, 124, 124, 120, 116, 116, 116, 116, 112, 112, 104, 104, 104, 104, 100, 100, 100, 100, 100, 100, 96, 96, 96, 92, 92, 88, 88, 88, 88, 84, 84, 84, 80, 80, 80, 80, 80, 76, 76, 76, 76, 72, 68, 68, 68, 68, 68, 64, 64, 64, 64, 64, 64, 64, 64, 60, 60, 60, 60, 56, 56, 56, 56, 52, 48, and 44.
  • The key to Quiz 5’ has been posted.

12/13/06

  • I have graded Quiz 5’ and the final.  I am still waiting for one quiz to reach me so I cannot post the answer key.  I want to recheck scores for the final before I post anything it. 
  • However, I can say the the average for Quiz 5’ was 16.4/25.  Although many did better on the second time around, the average is similar to Quiz 5. Remember, I will take the higher of the 2 scores.  The range of scores was 27.5, 27.5, 27.5, 24.8, 24.8, 24.8, 24.8, 24.8, 24.8, 22, 22, 22, 22, 22, 22, 22, 22, 19.2, 19.2, 19.2, 19.2, 19.2, 19.2, 19.2, 19.2, 19.2, 16.5, 16.5, 16.5, 16.5, 16.5, 16.5, 16.5, 16.5, 16.5, 13.8, 13.8, 13.8, 13.8, 13.8, 13.8, 13.8, 13.8, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8.2, 8.2, 8.2, 5.5, 5.5, 5.5, and 2.8.

12/12/06

  • The keys to the final exam have been posted

12/7/06

  • The final exam will be given Monday, Dec. 12, 1 – 3 PM. It will cover the entire course (Chapters 1 – 7 and all problem sets) although there will be an emphasis on Chapter 7.  Up to 40% of the final could be on nucleophilic substitution and elimination.  You will also need to know the following mechanisms
    • E1
    • E2
    • SN1
    • SN2
    • Electrophilic addition of water to alkenes
    • Acid catalyzed hydration of alkenes
  • We have one final review session Monday 11 AM – 12 PM in SB 476.  If there is not enough room, we will move to SB 421.
  • The keys to Quiz 5 have been posted.  The average was 16.2/25.  The range of scores was 27.5, 27.5, 27.5, 25, 25, 25, 22.5, 22.5, 22.5, 22.5, 22.5, 22.5, 20, 20, 20, 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, 15,15, 12.5, 12.5, 12.5, 12.5, 12.5, 12.5, 12.5, 12.5, 12.5, 12.5, 10, 7.5, 7.5, 7.5, 7.5, 7.5, 7.5, 7.5, 7.5, 5, 5, and 5.
  • Remember that you can take Quiz 5 again at the final.

 

Year

Quiz 5

2006

16.0

2005

18.8

2004

18.9

2003

19.7

2002

20.5

2001

21.4

2000

17.5

1999

14.9

1998

19.5

1996

20.2

 

12/5/06

  • Craig is well and will be back on Wednesday.
  • Last year’s final has been posted on the Review, Supplemental Handout, etc. page
  • The make up exam and quizzes have been graded. The average on the Make Up Exam was 65.  The averages on Make Up Quiz 1 and Make Up Quiz 2 were 17.6 and 18.2 respectively.

 

Year

Make Up Quiz 1

Make Up Quiz 2

Make Up Exam

2007

17.6

18.2

65

2005

17.8

15.1

55.9

2004

13

15

51

2003

20

17.6

69.7

2002

17.3

15.3

68.0

2001

19

12.9

76.6

2000

15.1

16.1

67.8

1999

15.1

14.8

57.7

1998

17.6

11.9

63.8

1996

15

13.2

61.6

 

12/4/06

  • I’ll let everyone know how Craig is doing when I hear.  He should be OK based on the information given to me previously.  If anyone felt distracted or otherwise affected, you could have let me know, and you could have left.  As it is, I will give another “Quiz 5” at the final.  If you feel that you need another chance, I will give another quiz on the same material.  I will count whichever is the higher score for your Quiz 5.

12/2/06

  • The make up exam and the make up quizzes and their corresponding keys have been posted.  Quiz 5 on Monday will be somewhat similar to Make Up Quiz 1 covering Chapter 6 and part of Chapter 7 posted today.

11/29/06

  • Last year’s make up exam and quizzes and their keys have been posted on the review, Supplemental Handout, etc. page.

11/27/06

  • I know that everyone would like to coast until the final. Unfortunately the remaining material is necessary and will be an important component on the final exam.
  • Note Sets 16, 17, and 18 have been posted.  I may make some changes to Note Set 18.
  • Upcoming Quizzes and Exams
    • The make up exam and the make up quizzes will be given this Sat. (Dec. 2) from 12 to 3 P.M. in SB 168 (our lecture hall).  Due to room scheduling problems, I did not receive it at 11 AM as stated on the syllabus.  However, if you planned your schedule around 11 AM, then I can let you start at that time in the organic chemistry lab.  No one should need 3 hours, let alone 4 hours as originally stated, but you can come at 11 AM if you think you need it.
    • The Make Up Exam will cover Chapter 6 and Chapter 7 through Wednesday’s lecture.  It will cover Problem Set 8 and Problem Set 9 through Wednesday’s lecture.  It will also cover the SN2 mechanism, the SN2 transition state, and the SN1 mechanism.
    • Make Up Quiz 1 will cover Chapters 4 and 5 and their corresponding problem sets.
    • Make Up Quiz 2 will cover Chapter 7 through Wednesday’s lecture.  It will also cover the SN2 mechanism, the SN2 transition state, and the SN1 mechanism.
    • Quiz 5 (“the optional quiz”) will be given this Monday (Dec. 4); it will cover Chapter 7 and Problem Set 9 through Wednesday’s lecture.  It will also cover the SN2 mechanism, the SN2 transition state, and the SN1 mechanism.
    • If for some reason, you do not want to take Quiz 5 and want to take a make up quiz instead, you can choose to do so and come on Saturday.  Please let me know so that I will have enough quizzes on hand.

11/21/06

  • Exam 3 has been graded.  The average was 71.6 (after adding in 4 late grades).  The range of scores was 108.1, 98.7, 98.7, 98.7, 98.7, 94, 94, 94, 94, 89.3, 89.3, 89.3, 89.3, 89.3, 84.6, 84.6, 84.6, 84.6, 84.6, 84.6, 84.6, 79.9, 79.9, 79.9, 79.9, 79.9, 79.9, 75.2, 75.2, 75.2, 75.2, 75.2, 70.5, 70.5, 70.5, 70.5, 70.5, 70.5, 70.5, 70.5, 70.5, 70.5, 65.8, 65.8, 65.8, 65.8, 65.8, 65.8, 61.1, 61.1, 61.1, 61.1, 61.1, 61.1, 57.7, 56.4, 56.4, 56.4, 56.4, 56.4, 56.4, 56.4, 56.4, 51.7, 51.7, 51.7, 47, 42.3, 32.9, 32.9, and 28.2.  37 people improved their grade over one of their previous 2 exams.
  • I have provided 3 numbers on your Exam 3 papers: the score for Exam 3, your total number of points so far, and your % score based on your 2 highest exams and all your quizzes.

Year

Exam 3

2006

70.9

2005

74.6

2004

80.7

2003

70.9

2002

79.8

2001

66

2000

82.4

1999

64.3

1998

60.6

1996

69
  • The answer key to Exam 3 has been posted.

11/20/06

  • Quiz 4 has been graded.  The average was 17.7/25.  The range of scores was 27.6, 27.6, 25.3, 25.3, 25.3, 25.3, 25.3, 25.3, 25.3, 23, 23, 23, 23, 23, 23, 20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.7, 20.1, 18.4, 18.4, 18.4, 18.4, 18.4, 18.4, 18.4, 18.4, 18.4, 18.4, 18.4, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 16.1, 15.7, 13.8, 13.8, 13.8, 13.8, 13.8, 11.5, 11.5, 11.5, 11.5, 11.5, 9.2, 9.2, 9.2, 9.2, 9.2, 6.9, and 2.3.

Year

Quiz 4

2006

17.7

2005

20.3

2004

18.9

2003

19.7

2002

20.5

2001

21.4

2000

17.5

1999

14.9

1998

19.5

1996

20.2

 

11/15/06

  • The keys to Quiz 4 have been posted on the Review, Supplemental Handout, and etc. page.

11/14/06

  • Read sections 23.1 through 23.2c (pp. 1271 – 1279) from the text since we are covering a few aspects of amino acids.  I have added the following questions to Problem Set 8 to give you more practice with amino acids (23.3, 23.15, 23.16 (do not name, only give 3 letter code for amino acid residues), 23.26, 23.27 (do not name, only give 3 letter code for amino acid residues), 23.28, and 23.29).  On an exam or quiz, you will be given structures, names and 3 letter codes to use to answer such questions.
  • Note Set 15 has been posted.
  • Start reading Chapter 7, and start Problem Set 9. I consider Chapter 7 the most difficult chapter in the book.  In many ways, next semester will be more difficult because it covers so much.  However, as an individual chapter, I think 7 is the most difficult.
  • Quiz 3 has been graded.  The scores for Form C were prorated to 29.4 since there were only 13 valid questions.  The average was 19/25.  The range of scores was 29.4, 27.3, 27.3, 27.3, 27.1, 27.1, 25.2, 25.2, 25.2, 25.2, 25.2, 25.2, 24.9, 23.1, 23.1, 23.1, 23.1, 23.1, 23.1, 22.6, 22.6, 22.6, 22.6, 22.6, 22.6, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20.3, 20.3, 18.9, 18.9, 18.9, 18.9, 18.9, 18.9, 18.9, 18.9, 18.1, 18.1, 18.1,16.8, 16.8, 16.8, 16.8, 16.8, 16.8, 16.8, 16.8, 15.8, 15.8, 15.8, 15.8, 14.7, 14.7, 13.6, 12.6, 11.3, 10.5, 8.4, 6.8, 6.8, 6.3, 6.3, 6.3, and 0.

 

Year

Quiz 3

2006

19.0

2005

18.7

2004

17.0

2003

17.1

2002

20.6

2001

20

2000

19.5

1999

19.4

1998

17.8

1996

19.6

 

  • The answer keys to all forms of Quiz 3 have been posted.  Please let me know if there are any typos.
  • Quiz 4 this Friday will cover Chapter 6 and Problem Set 8 through this past Monday’s lecture (11/13/06).  The answer key will be posted Friday night.  You may write down your answers so you can check them and get an idea of your score.
  • Exam 3 on Monday (11/20) will cover topics from Chapter 4 and Problem Set 6 not covered on Exam 2, Chapter 5 and Problem Set 7, and Chapter and Problem Set 8 through Wednesday’s lecture (11/15). 
  • Exam 3 and its key from last year has been posted on the Review, Supplemental Handout, and etc. page.

11/13/06

  • I have received 2 potential organic texts containing the Arrhenius definition.  Unless there is a problem with these texts, we have a potential winner. 

11/7/06

  • Some good questions were asked about acids and bases in lecture on 11/6/06.  However, some of the answers were definitely “beyond the scope” of the course.  Since I don’t want to leave these questions unanswered and since they don’t properly belong in the course, I have briefly answered them in a link entitled Acid-Base Questions From Lecture on the Review, Supplemental Handout etc. page. Let me know if you want more information.  In the case of the Arrhenius definitions for acids and bases given in the link, a survey of organic texts should show that the Arrhenius concept is not important to organic chemistry. However, I will give 10 points extra credit on top of their course point total to the 1st student who shows me an organic chemistry text published since 1988 that gives the Arrhenius definition for acids and bases.

11/6/06

  • Note Set 14 has been posted.  We may actually get to it today.
  • Quiz 3 will be given Friday Nov. 10.  It will cover all of Chapter 5 and Problem Set 7.  It will also cover those topics from Chapter 4 and Problem Set 6 that were not covered on the last exam.  Also, some questions may ask you to determine whether the absolute configuration at a stereogenic center is R or S or what is the priority of the groups around a stereogenic center.  Extra credit questions may ask you to calculate ring strain, name a bicyclic compound, or involve the material in Section 4.13.
  • Quiz 4 will be given on Friday Nov. 17.  It will cover all of Chapter 6 and Problem Set 8.  I will announce later how much from Chapter 6 will be covered.  It will be good preparation for Exam 3 on Monday, Nov. 20.
  • This crams together some quizzes now, but it will be than having them later.
  • Quiz 4 and its key from last year have been posted on the Review, Supplemental Handout, and etc. page.

11/3/06

  • Note Set 13 has been posted.
  • A short description of how to name polycyclic structures for extra credit has been posted on the Review, Supplemental Handout, and etc. page.

10/31/06

  • Start reading Chapter 6 and start Problem Set 8.
  • Quiz 3 and its key from last year have been posted.

10/30/06

  • Note Sets 11 and 12 have been posted.
  • The keys to Exam 2 have been posted on the Review, Supplemental Handout, and etc. page.

10/27/06

  • Start reading Chapter 5 and start Problem Set 7
  • Exam 2 has been graded.  I considered the exam to be somewhat longer and somewhat more difficult than last year.  I decided to make each question worth 4.6 points.  The maximum score was capped at 110/100 no matter how many you had correct.  For the people who took the exam at SSD, I can explain how I handled the typographical error upon request.  The average was 70.4.  The range of scores was 110, 110, 105.8, 105.8, 101.2, 101.2, 92, 92, 87.4, 87.4, 87.4, 87.4, 87.4, 82.8, 82.8, 82.8, 82.8, 82.8, 82.8, 78.2, 78.2, 78.2, 78.2, 78.2, 78.2, 78.2, 78.2, 73,6, 73.6, 73.6, 73.6, 69, 69, 69, 69, 69, 69, 69, 69, 69, 64.4, 64.4, 64.4, 64.4, 64.4, 64.4, 64.4, 59.8, 59.8, 59.8, 59.8, 59.8, 59.8, 59.8, 59.8, 59.8, 59.8, 59.8, 55.2, 55.2, 55.2, 55.2, 55.2, 55.2, 55.2, 50.6, 50.6, 50.6, 46, 41.4, 41.4, 36.8, and 18.4.

 

Year

Exam 2

2006

70.4

2005

75

2004

79.4

2003

78.1

2002

81.4

2001

88.6

2000

79.0

1999

80.1

1998

78.8

1996

84.5
  • Right now the averages are behind those of previous years. I’m giving the same notes and lectures and giving similar exams and quizzes.  If more review sessions are needed, give me times if you have not already.

10/23/06

  • Meso compounds from Friday’s lecture will not be covered on the exam on Wednesday. 
  • Quiz 2 has been graded.  The average was 16.4/25.  The range of scores was 27.2, 25.5, 25.5, 25.5, 23.8, 23.8, 23.8, 23.8, 22.1, 22.1, 22.1, 22.1, 22.1, 22.1, 20.4, 20.4, 20.4, 18.7, 18.7, 18.7, 18.7, 18.7, 18.7, 18.7, 18.7, 18.7, 18.7, 18.7, 18.1, 17, 17, 17, 17, 17, 17, 16.4, 15.3, 15.3, 15.3, 15.3, 15.3, 15.3, 15.3, 15.3, 15.3, 15, 15, 14.7, 13.6, 13.6, 13.6, 13.6, 13.6, 13.6, 13.3, 11.9, 11.9, 11.9, 11.9, 11.9, 11.9, 11.3, 10.2, 10.2, 10.2, 10.2, 10.2, 10.2, 10.2, 8.5, 8.5, 8.5, and 8.5.  Each question was worth 1.7 points.  There were 2.2 points of extra credit.  There were only 0.5 points on last year’s Quiz 2.  I made the change because I thought that this year’s quiz was slightly more difficult and since many seemed pressed for time. 

 

Year

Quiz 2

2006

16.4

2005

16.7

2004

17.2

2003

19.8

2002

16.8

2001

20.9

2000

21.1

1999

18.8

1998

19.0

1996

20.8

 

10/21/06

  • The answer keys to all 3 forms of Quiz 2 have been posted.  Check the Review, Supplemental Handout, etc. page.

10/20/06

  • Exam 2 will be this Wed. Oct. 25.  It will cover the same topics, notes, mechanisms, and problem sets that are covered in Quiz 2 along with Chapter 4 and Problem Set 6 covered through today’s lecture.
  • I will be out of town on Monday.
    •   The lecture will be given by videotape.  If possible, we’ll even have the clickers used. 
    • I will have someone hand back Quiz 2 graded, but it requires that you be careful in filling out the Parscore form.  Before they can be graded by the LRC in the library, I must sort them and make corrections.  This takes time.  The sooner I can get them sorted, the sooner I can have someone take them to the library and get them graded. Then I can record grades over the weekend.  If they don’t get to the LRC soon enough, they won’t get back to you on Monday.  Use your student ID number if possible.
    • Normally we have a review session on Monday at 11 AM.  Since I won’t be here, I can give one at 11 AM on Tuesday in SB476.  However, if you can’t make it then, make an appointment with me, and I can give you the same problems to try.

 

10/16/06

  • Notes 9 and 10 have been posted.
  • Start reading Chapter 4, and start Problem Set 6.
  • Quiz 2 will be given this Fri. Oct. 20.  It will cover those sections of Chapter 2 not covered on Exam 1 and Chapter 3 through today’s lecture.  It will cover those questions from Problem Sets 3 and 4 that were not covered for Exam 1 and Problem Set 5 through today’s lecture.  You will need to know the mechanisms for the addition of H-X to alkenes and the acid catalyzed addition of water to alkenes.  It will be similar in coverage to last year’s Quiz 2, but don’t expect it to be exactly the same.  Questions may come from the problem sets, text, and notes. 

10/12/06

  • I have modified Slide 15 and added another one which is now Slide 17 in Note Set 8.  You may want to print them off separately if you have already printed the notes out.

10/06/06 > 6 PM

  • If you have the 1st printing of the 3rd edition of the text, there are typos on p. 81 of Table 2.5.  The 1st three entries of the final column should read “No”.  These typos and others for the 1st printing and 2nd printing of the 3rd edition can be found at Maitland Jones’ website.  I have yet to detect an error in any concept, rule, convention, reaction, or mechanism in the text.  He often has things correct that are wrong in other texts.  Also, despite his breezy style, I have found instances where his choice of words in explaining a topic is very precise.  However, there are some typos and these are the only mistakes that I have found or have been brought to my attention.
  • If you are interested in trans fats here is a review article in the New England Journal of Medicine.
  • A student in the class found a website at Michigan State University useful in providing nomenclature problems for extra practice.

10/06/06

  • I added a slide to Note Set 7.  It is after slide 115.

10/05/06

  • Last year’s Quiz 2, Exam 2, and their keys have been posted on the CHM 255 Old Exams and Quizzes page.
  • Note Set 8 has been posted.

9/29/06

  • Start reading Chapter 3 and start Problem Set 5.

9/28/06

  • Note Set 7 has been posted.
  • If you think there was an error grading the exam, please write down what you think is the problem on the inside cover of the exam.  Then give it to me and I will look at it.

9/26/06

  • Exam 1 has been graded.  Since the exam was out of 105 points (5 points extra credit), each question was worth 3 points and not 3.5.  If the Parscore form was not filled out as requested in the exam, 0.2 points was deducted per error. The average was 83.1/100.  The range of scores was 105, 105, 102, 102, 102, 102, 102, 99, 99, 99, 96, 96, 96, 93, 93, 93, 93, 93, 93, 90, 90, 90, 90, 90, 90, 89.8, 87, 87, 87, 87, 87, 87, 87, 87, 87, 86.5, 84, 84, 84, 84, 84, 84, 84, 84, 81, 81, 81, 81, 81, 81, 81, 81, 80.6, 78, 78, 78, 78, 78, 78, 77.8, 77.6, 75, 75, 75, 72, 72, 72, 72, 72, 69, 69, 69, 69, 68.6, 66, 66, 63, 60, 60, 54, 54, and 53.6.

9/25/06

  • The answer keys to Exam 1 have been posted on the Exam and Quiz Answer Keys 2006 link on the Review, Supplemental Handout, etc. page.

9/19/06

  • Note Set 6 has been posted.  We will probably cover it on Wed.
  • Quiz 1 has been graded.  The average was 18.8.  The range of scores was 26.6, 26.6, 26.6, 26.6, 26.6, 26.6, 24.7, 24.7, 24.7, 24.7, 24.7, 24.7, 22.8, 22.8, 22.8, 22.8, 22.8, 22.8, 22.8, 22.8, 22.8, 22.7, 20.9, 20.9, 20.9, 20.9, 20.9, 20.9, 20.9, 20.9, 20.9, 20.9, 20.8, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18.9, 18.9, 17.1, 17.1, 17.1, 17.1, 17.1, 17.1, 17.1, 17, 16.9, 15.2, 15.2, 15.2, 15.2, 15.2, 15.2, 15.2, 15.2, 15.1, 15.1, 13.3, 13.3, 13.3, 13.3, 13.3, 13.3, 13.3, 13.3, 13.2, 13.2, 11.4, 11.4, 9.5, 9.5, and 7.6.  Many Parscore forms were not completely filled in as requested. 0.1 was deducted for each missing or incorrect item on the form.  It really slows down the grading process if it is not filled out properly.

 

Year

Quiz 1 Average

2006

18.8

2005

21.5

2004

19.2

2003

20.9

2002

20.3

2001

21.2

2000

21.1

1999

19.1

1998

21

1996

19.8

 

I did not believe that the quiz was significantly harder than previous years and yet this was the lowest average since 1996. I’m going to see how the upcoming quizzes and exams turn out.  If this is an aberration, I’ll consider adjusting scores.  The material on the 1st quiz is largely an application or review of general chemistry.  Usually I believe that if you had trouble on this quiz, the rest of the semester may not go well.  However, I have provided a table at the link that shows the 1st quiz score, total grade and letter grade for last year’s class.

  • The following questions from Problem Sets 3 and 4 will not appear on the exam since they were not covered by Monday afternoon.
    • Problem Set 3: 2.12, 2.14 – 2.17, 2.20, 2.23 – 2.25, 2.32, 2.35 – 2.37, 2.45, 2.47, 2.48, 2.53, 2.54, and 2.57.
    • Problem Set 4: 1, 5, 6, and 7.

 

9/18/06

  • I need to double check the exams before I return them.  They will be returned Wed.
  • Exam 1 will be this Friday.  It will cover all of Chapter 1 and Problem Sets 1 and 2.  It will also cover Chapter 2 and Problem Set 3 and 4 through today’s lecture.  By Wed. I will post which questions from Problem Sets 3 and 4 will not be on the exam.

9/16/06

  • The answer keys to forms A through D have been posted as a new link on the Review Supplemental Handout, etc. page.  Some formatting changes occurred when the files were saved as web pages.  I did not correct all changes.

9/14/06

  • Problem Set 4 and its answer key have been posted.  See the links on the Problem Sets page.
  • A typo was corrected on Quiz 1 from 2005.  The answer to question 12 is c and not b as it was originally written.
  • Remember that Exam 1 will be given Fri. Sept. 22.  It will cover Chapters 1 and 2, and Problem Sets 1 – 4 through Monday’s lecture.  More specific information will be given Monday.

9/11/06

  • In Note Set 3, Slide 23, I did state the following
    • Note that the antibonding molecular orbital has 1 new node relative to the bonding molecular orbital.  This makes the antibonding orbital higher in PE.

At that time I explained how new nodes should be counted.  However, to make it an explicit guideline, I have added Slide 8 to Note Set 4 which states the following.

    • To determine the relative energy of MO’s, you need to determine the number of new nodes that are present in each orbital.
    • This is best done by comparing each MO to the MO with the least # of nodes (usually a bonding MO)
  • I won’t count incorrect answers on that particular question.

9/11/06

  • If anyone wants a review session at another time than those scheduled, you need to suggest alternative times by e-mail or writing them on a piece of paper and giving them to me.
  • I did add a slide to Note Set 4.  You may want to print it out separately.  It is just an example of why lining up 3 orbitals is important.

9/8/06

  • Quiz 1 will be given Fri. Sept. 15.  It will cover all of Chapter 1 and Problem Sets 1 and 2.  I will probably finish with Chapter 1 on Monday.  There may be some questions concerning bond dipoles and molecular polarity very similar to those found in the problem set.  Quiz 1 and Exam 1 from last year are available on the Review, Supplemental Handout, and etc. page.  However, don’t expect the quiz on Friday to be exactly like them in its format.  There will be similarities, but there also may be significant changes.   Note Set 2 from the lab course (CHM 254) contains a review of bond dipoles and polarity.  This will be one topic from general chemistry that will not be reviewed in lecture.
  • We will start Chapter 2 on Mon. or Wed.  You may want to start reading it and start Problem Set 3.

8/31/06

  • Note Sets 3, 4, and 5 have been posted.
  • Problem Set 2 and its key have been posted on the Review, Supplemental Handout, and etc. page.

8/25/06

  • I have placed a solutions manual on reserve at the library.
  • I have posted the Review, Supplemental Handout, etc. page.  There is a link to old exams and quizzes.  I have posted versions of Quiz 1 and Exam 1 from last year.
  • The answer key to Problem Set 1 has been posted on the bulletin board outside my office.
  • 57 students have registered on CPS.  Since things seem to be working, I will start counting response for points on Wed. Aug. 30.  If you have trouble registering and enrolling and have trouble with Tech support at einstruction, see me.  After class today will be difficult because I must go to lab at 2:30 PM.

8/24/06

  • If you tried to register your clicker at the einstruction website instead of through WebCT, you ran into the problem that there was no class key given.  A class key is not required by WebCT.  However, once you register by einstruction and then try to enroll by WebCT, it won’t work.  In that case, try enrolling through einstruction again.  I have now obtained a class key: G21672J147.
  • Review sessions will be every Monday 11 AM – 12 PM in SB 476 and every Thursday 6 – 7 PM in SB 421.  If 5 or more people suggest a time that they are committed to attending and it fits my schedule, then I will open another (possibly 2) more review sessions.  However, I would like at least one new review session to be heavily populated (20 or more people).

8/22/06

  • I have posted a link on the home page giving you instructions on how to register the clickers through WebCT and using them.  Four people who already had WebCT accounts have noticed that the course was posted and registered there clickers.  Let me know if you have problems.  I will set a due date for when your clickers must be activated.

8/21/06

  • There will be no review sessions the first week.  Rooms for the review sessions will be announced at the end of the week.
  • Instructions for registering your clickers will be provided by Wed.

8/11/06

  • A syllabus for the fall semester has been posted.  
  • The 1st 2 note sets have been posted.
  • Start reading Chapter 1 and do Problem Set 1 if you want a head start.

If you have comments or suggestions, email me at maloneyv@ipfw.edu