CHM
110 Homework Problems
Introduction
to General, Organic and Biochemistry.
Bettelheim
and March, 9th edition
Chapter 1 - Matter,
Energy and Measurement
1.25, 1.26, 1.28, 1.30, 1.32, 1.38, 1.47, 1.50, 1.73
Even Answers:
 |
1.26 = (3,2,1,4,5) |
| 1.28 = (25000, 4.1, 15.5) |
|
1.30 = (10963.1, 244, 172.34) |
|
1.32 = (1000 g, 0.001 g) |
| 1.38 = (93.9 lb, 735 g, 86 cm) |
| 1.50 = (220) |
Chapter 2
- Atoms
2.10, 2.11, 2.15, 2.25, 2.27, 2.29, 2.30, 2.31. 2.46, 2.53, 2.80, 2.85
Even
Answers:
| 2.10 = (E, C, M, M, M, E, E, M, M, M, C, M) |
| 2.30 = (10p/12n, 46p/58n, 17p/18n, 52p/76n, 3p/4n, 92p/146n) |
| 2.46 = (Pd, Co, Ce, Cr) |
| 2.80 = (15p/15e/17n; 42p/42e/56n; 20p/20e/24n; 1p/1e/2n, 64p/64e/94n, 83p/83e/129n) |
Chapter 3 - Chemical Bonds
3.21,
3.39, 3.42, 3.52, 3.59
Even Answers:
| 3.42 = (Ca+2 S-2, Mg+2 F-1, Cs+1 O-2, Sc+3 Cl-1, Al+3 S-2) |
| 3.52 = (sodium fluoride; magnesium sulfide; aluminum oxide; barium chloride; calcium bisulfite; potassium iodide; strontium phosphate; iron(II) hydroxide (ferrous hydroxide); sodium dihydrogen phosphate; lead(II) acetate; barium hydride; ammonium hydrogen phosphate) |
TYPO: Table 3.4 page 73 SO3- is not correct. Should be SO3-2 page 73
Chapter 4
- Chemical Reactions
4.19, 4.21, 4.22, 4.28, 4.34, 4.45, 4.47, 4.51, 4.77, 4.93
Even Answers:
| 4.22 = (81.4 g; 50. g; 1.30X103 g; 63.7 g; 8.6 g) |
| 4.28 = (1.7X1024; 1.67X1021; 1.0X1021) |
| 4.34 = (1 + 1 --> 2; 4 + 3 --> 2; 2 + 1 --> 2; 2 + 6 --> 2 + 3; 4 + 5 --> 2) |
Chapter 5
- Gases, Liquids, and Solids
Part I - 5.18, 5.22, 5.24, 5.26, 5.34, 5.35, 5.39, 5.40, 5.58
Even Answers:
| 5.18 = (1.5 atm) |
| 5.22 = (1.87 L) |
| 5.24 = (748 K = 475 oC) |
| 5.26 = (1.17 atm) |
| 5.34 = (61.0 mL) |
| 5.40 = (2.8 L) |
| 5.58 = (Yes, sum 785 mm Hg suggests another gas is present at 5 mm Hg) |
Part II - 5.74, 5.76, 5.80, 5.82 and Chapter 1 - 1.56, 1.57, 1.58, 1.76
Even Answers:
|
|
|
5.74 = (0.232 cal . g-1 . oC-1) |
|
5.76 = (240 cal) |
| 5.80 = (1860 cal) |
| 5.82 = (5400 cal + 630 cal = 6030 cal = 6.0 kcal, 630 cal) |
|
1.56 = (2.1E3, 5.1E3, 9.9E4, 2.5E3) |
|
1.58 = (1.5E2) |
|
1.76 = (Mercury, 162, 0.17 graphite) |
Chapter 6
- Solutions and Colloids
6.34, 6.37*, 6.39, 6.41, 6.47, 6.49, 6.73, 6.75, 6.77, 6.97
| *TYPO 6.37 answer in the book 0.3% is not correct. Correct answer = 0.03% page A-18 |
| 6.34 = (26.60 g H2S fill water, 1.515 g benzene fill toluene; 4.28 g dimethyl sulfoxide fill acetone) |
Chapter 7
- Reaction Rates and Chemical Equilibrium
7.11*, 7.17, 7.21, 7.25, 7.31, 7.38, 7.41
Even Answers:
| TYPO 7.1 answer in the book 50.022 is not correct. Correct answer = 0.022 page A-19 |
| *TYPO 7.11 answer in the book 57.3 X 10-3 is not correct. Correct answer = 7.3 X 10-3 page A-19 |
| 7.38 = (R, L, L, L, No shift, R) |
Chapter 8
- Acids and Bases
8.29, 8.33, 8.37, 8.39, 8.47, 8.82
Even Answers:
| 8.82 = (pH=0, 1M) |
Chapter 9
- Nuclear Chemistry
9.14, 9.20, 9.22, 9.26, 9.28, 9.31, 9.32, 9.34,
9.51, 9.77
Even Answers:
| 9.14 = (19F; 32P; 87Rb) You should include the subscript for protons! |
| 9.20 = (159Gd, 141La, 242Cm) |
| 9.22 = (206Tl, 234U, 170Yb) |
| 9.26 = (In the first step, alpha emission occurs; in the second and third steps, beta emissions occur.) |
| 9.28 = (28Si, 142Xe, 1n, 210Po, 13N) |
| 9.32 = (After 3 half-lives 12.5% remains) |
| 9.34 = (No, this is not a nuclear process, so the radioactivity does not change) |