Welcome to Chemistry 202

Announcements

December 9

Blank copies of our old Exams I, II and III are now posted as pdf files under "Handouts", as ExamI.pdf, ExamII.pdf, and ExamIII.pdf.

December 8

Today we finished Chapter 7, with a little bit about how cells can make nonspontaneous reactions spontaneous by "coupling" them - a version of Hess' Law.
The only new material for the final: ∆G = ∆H - T∆S and ∆G = -RT lnK

Tomorrow, Dec. 9:  Make sure you go to your discussion section and turn in your last homework.

Monday, Dec. 14: optional review session,  7:00 pm, 165 Everitt Hall

Wednesday, Dec. 16:  FINAL EXAM, 1:30-4:30 pm, rooms depend on what section you are in:  100 Noyes Lab (Noel and Michael), 116 RAL (James and Mary), 152 Chem Annex (Dewey).  BRING A PENCIL since we may be doing scantron forms for the multiple choice portion of the exam.

Suggested practice problems for the final, from our textbook:
1.6, 1.34, 1.52 and 1.54, 1.103, 1.123
2.10, 2.37, 2.45, 2.63, 2.78, 2.108
3.13., 3.31, 3.38, 3.53, 3.63, 3.68, 3.97, 3.102, 3.112
4.21, 4.32, 4.38, 4.48, 4.56, 4.62, 4.80, 4.100, 4.115
5.11, 5.28, 5.41
6.6, 6.7, 6.13, 6.19, 6.40, 6.53, 6.67, 6.85, 6.105
7.9, 7.17, 7.47, 7.50, 7.6, 7.78, 7.99

Check the online gradebook to see your updated scores for all components in the class.  Exams I, II and III, quizzes and homework scores will be set by the time of the final exam and cannot be changed.  If you have a discrepancy with what you think a score is and what we think a score is, you need to see Prof. Murphy before the final exam.

December 3

In class on Dec. 1 we reviewed for Exam III.  Exam III was administered Dec. 2; results are: high, 97; low, 30; mean, 73; median, 73; standard deviation, 13. The solutions to Exam III are posted as a pdf file under "Handouts."

Today in class we mostly finished Chapter 7 (in addition to going over Exam III).  
Homework assignment (last one!) due WEDNESDAY Dec. 9 to your TA:
7.45, 7.49, 7.50, 7.51, 7.53, 7.60, 7.63, 7.67, 7.87, 7.92 (10 points total).

We have the rooms for the FINAL EXAM, scheduled for 1:30-4:30 pm, Dec. 16.  
NO CONFLICT EXAM.  
Sections AQB, AQ6, AQD, AQ2, AQ3, AQ8 (Michael and Noel):  100 Noyes Lab
Sections AQ4, AQC, AQ9, AQF (James and Mary):  116 Roger Adams Lab
Section AQA (Dewey):  152 Chem Annex

Last Chem 202 lecture is Tues. Dec. 8.  You have two more meetings with your TA's:  Friday Dec. 4 and Wed. Dec. 9.  Check the website for new announcements (Professor Murphy will try to find a room for an evening review session before the final).

November 23

Professor Murphy wishes everyone a happy and healthy Thanksgiving.  
You can  find under "Handouts" two new files:  Sample Exam 3 and Review Sheet 3.

Solutions to Sample Exam 3 are now posted.

November 19

The statistical theory of entropy, plus the thermite reaction!
Homework due tomorrow: 7.4, 7.7, 7.17, 7.27, 7.35, 7.43.
No class next week.

EXAM III is approaching:  Wednesday, Dec. 2, 7:00-9:00 pm.  
Rooms:
Sections AQ4, AQC, AQ9, AQA (James and Dewey): 150 Animal Sciences Building
Sections AQ2, AQ8 and AQ3 (Noel): 180 Bevier Hall
Sections AQB, AQ6, AQD, AQF (Michael and Mary): 103 Mumford Hall.

Conflict Exam is 4:30-6:30 pm, also Dec. 2, in 161 Noyes Lab. You must sign up for the conflict exam ahead of time outside 101 Chem Annex (check for clipboard).

November 17

Today we finished Chapter 6 and started Chapter 7.  Homework due tomorrow:  6.83, 6.87,7.1

November 12

Professor Murphy was out of town but Professor Martin Gruebele covered for her, on enthalpy.  Homework for Nov. 13: 6.35, 6.39, 6.49, 6.74, (6.79)

November 10

Today we got more into energy, work, heat, and heat capacity.  Homework for Nov. 11: 6.15, 6.17, 6.23, 6.31

November 5

We finished Chapter 5 and started Chapter 6. Homework for tomorrow: 5.13, 5.42, 5.62, 6.1, 6.5, 6.8.

November 3

Professor Murphy will be assigning more than 100 points of homework this semester.  You get to keep points over 100 as extra credit!

Today in lecture we did a whole lot of intermolecular forces and discussed classifications and unit cells of solids.  "Dance of the Solids" handout, a poem by John Updike, is posted under "Handouts".  Homework for tomorrow: 5.1, 5.3, 5.17, 5.33, 5.39.

October 29

Exam II is done!  High = 99, low = 28, average = 76, median = 78.  Solutions are posted under "handouts".

We have started Chapter 5, intermolecular forces, solids and liquids.  No homework assigned today but do start reading Chapter 5.  Happy Halloween!

October 22

We finished Chapter 4 - Maxwell-Boltzmann kinetic theory of gases; gas speeds; Boltzmann statistics.  

Homework assigned for tomorrow: 4.65, 4.83, 4.87, 4.111.

Lecture on Tuesday 10/27 cancelled:  instead, study for Exam II!

October 20

Today in class we did the ideal gas law (PV = nRT) and the van der Waals equation of a gas. Homework assigned for tomorrow: 4.24, 4.30, 4.52.

Exam II review session (optional): 7:00 pm- 9:00 pm Wed. Oct 21, 151 Everett Hall

October 15

We finished Chapter 3. Homework due tomorrow: 3.65, 3.67, 3.68.

We have the rooms for Exam II, 7:00-9:00 pm, Wed. Oct. 28:

Sections AQ4, AQC, AQ9, AQA (James and Dewey): 150 Animal Sciences Building
Sections AQ2, AQ8 and AQ3 (Noel): 180 Bevier Hall
Sections AQB, AQ6, AQD, AQF (Michael and Mary): 103 Mumford Hall.

Conflict Exam is 4:30-6:30 pm, Oct. 28, in 161 Noyes Lab. You must sign up for the conflict exam one week ahead of time outside 101 Chem Annex.

October 13

Prof. Murphy's powerpoint lecture on spectroscopy is posted under "Slides" as a pdf file with the date (101309.pdf). The homework assignment for tomorrow is included there.

October 8

Uv-vis and IR spectroscopy.  Homework due tomorrow to your TA's: 2.110, 3.89 and 3.93.

October 6

Homework for tomorrow:  3.49, 3.50, 3.51

October 1

Lecture of MO theory:  read Chapter 3.  No additional homework at this time.

September 29

Homework assigned today, due FRIDAY Oct. 2 to your TA: 3.33, 3.34, 3.35, 3.36, 3.37, 3.77, 3.86.

September 24

Exam I is done! Average = 79, high = 100, low = 42. The solutions to Exam I are posted under "Handouts."

September 22

We are now in Chapter 3. Homework due WED SEPT 30: 3.1, 3.3, 3.6, 3.10, 3.12, 3.15, 3.20, 3.21, 3.22, 3.23, 3.24, 2.35, 3.26, 3.27, 3.28, 3.29, 3.30.

September 17 

Homework assigned today and due tomorrow to your TA:
2.72, 2.75, 2.77, 2.81, 2.98, 2.106
Sample Exam and Sample Exam Solutions posted under "handouts"

September 15

Homework assigned today, due tomorrow: 2.2, 2.4, 2.10, 2.18, 2.34, 2.38, 2.52, 2.64, 2.70, 2.71.

Today's lecture posted as pdf file under "slides" with the date (091509).

Exam I review session (optional): 7:00 pm- 9:00 pm Sunday Sept 20, 100 Noyes Lab

Exam I is coming soon! Sept. 23, 7:00 pm - 9:00 pm. You must sign up for the Conflict Exam by TOMORROW outside the bulletin board in 101 Chem Annnex. The conflict exam will be held 4:30-6:30 pm in 161 Noyes Lab. Exam rooms for the regularly-scheduled exam depend on what section you are in, see below.

Sections AQ4, AQC, AQ9, AQA (James and Dewey): 150 Animal Sci Bld
Sections AQ2, AQ8, AQ3 (Noel): 180 Bevier
Sections AQB, AQ6, AQD, ADF (Michael and Mary): 103 Mumford

September 10
Homework assigned on Sept. 8 was 1.40, 1.42, 1.50, 1.52 and 1.58
Homework assigned today was 1.85, 1.87, 1.92, 1.119

September 3

Homework due tomorrow in quiz section is 1.21, 1.23, 1.33.
For good visualizations of orbitals, see the "Orbitron" website:
http://winter.group.shef.ac.uk/orbitron/

September 2

A handout about the Bohr model of the atom, entitled "BohrOverview.pdf" is now posted under "handouts".

September 1

Homework assigned: 1.9, 1.19, 1.31, due Wed. in quiz sections.

August 31

Online Gradebook Now Up - students, you can check your grades online as we go.
Homework Assignment #2 was 1.3, 1.5, 1.16 in Chapter 1, which was due this past Friday. More homework coming!