Homework Set # 24:Due Wednesday, November 29, 2006
Lab Manual, p. 46: 2,3
pp. 51-52: 1,4,5,7,8
Homework Set # 25:Due Friday, December 1, 2006
Handout 7: All
Handout 8: 1,2 (Use Bond Energies Below)
Daily Assignments
For Monday, November 27 Read Experiment 11, Parts C and D, pp. 49-51
For Tuesday, November 28: Read Chapter 10, section 6
For Wednesday, November 29: Read Chapter 20, (section 10) Bond Energy
For Friday, December 1: Read Chapter 12, sections 1,2,3
For Monday, December 4: Read Experiment 12, Lab Manual pp. 53-58
For Tuesday, December 5: EXAM 5 (Homework sets 22,23,24,25,26)
OTHER ANNOUNCEMENTS
Problem Session:
Tuesday, November 28, 5:30 p.m., MH 229
Monday, December 4, 5:20 p.m., MH 334
Group Tutoring Sessions
Mondays, 7:15-9:15 pm, MH 229
Thursdays, 7:15-9:15 pm, MH 229
Final Exam, Tuesday,December 12, 8:00 a.m.
IN CLASS EXAMPLES:
1. Consider the shapes of the following molecules:
C2H6, C2H4, C2H2, CO2, HCN, CH3CH=C=C=CH-CºCH
2. Using bond energies estimate DH for the following reaction: C2H2(g) + 2H2(g) = C2H6(g)
3. The standard heat of formation for N2H4(g) is +95.40 kJ/mole. Using this fact and the bond energies below, estimate the bond energy for the N-N single bond.
AVERAGE BOND ENERGIES:
Bond |
Bond Energy (kJ/mole) |
Bond |
Bond Energy (kJ/mole) |
|
C-H |
412 |
C-N |
305 |
|
C-O |
360 |
C=N |
613 |
|
C=O |
743 |
CtripleN |
890 |
|
C-C |
348 |
H-O |
463 |
|
C=C |
612 |
H-N |
388 |
|
CtripleC |
835 |
H-H |
436 |
|
C-F |
484 |
NtripleN |
945 |
|
C-Cl |
338 |