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CHM 110  Homework Problems

Introduction to General, Organic and Biochemistry. 

Bettelheim and March, 8th edition

 

Chapter 1 - Matter, Energy and Measurement

1.15, 1.25, 1.26, 1.28, 1.30, 1.32, 1.34, 1.38, 1.41, 1.47, 1.50, 1.73, 1.75, 1.80  

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) 

1.34 = (100 cm, 230 ml, 75 kg, 15 ml)

1.38 = (93.9 lb, 735 g, 86 cm)

1.50 = (220)

1.80 = (70, 87, 1.0E4, 2.9E3)

Chapter 2 - Atoms

2.9, 2.10, 2.14, 2.23, 2.25, 2.27, 2.28, 2.29, 2.43, 2.49, 2.71, 2.76

Even Answers:  

2.10 = (sulfur, iron, hydrogen, potassium, silver, gold)

2.14 = (K20, Na3PO4, LiNO3)

2.28 = (10p/12n, 46p/58n, 17p/18n, 52p/76n, 3p/4n, 92p/146n)

2.76 = (4,7,5,1,2,2,8,4,6,6)

Chapter 4 - Chemical Bonds

4.20, 4.31, 4.35, 4.38, 4.47, 4.53, 4.57

Even Answers:

4.20 = (Mg2+, F-, Al3+, S2-, K+, Br-)

4.38 = (Ca+2 S-2, Mg+2 F-1, Cs+1 O-2, Sc+3 Cl-1, Al+3 S-2)

Chapter 5 - Chemical Reactions

5.17, 5.19, 5.20, 5.21, 5.27, 5.31, 5.41, 5.43, 5.45, 5.47, 5.58, 5.67, 5.70, 5.86

Even Answers:

5.20 = (2.0 mol CH4, 11.52 mol NO, 2.754 mol Cl02, 7.82 mol C3H803)

5.58 = (Ca3(PO4)2, none, BaCO3, Fe(OH)2, none, Sb2S3, PbSO4  See rules p. 147.

5.70 = (endo, exo, exo, endo, exo)

5.86 = (2.71E3)

Chapter 6 - Gases, Liquids, and Solids

Part I - 6.13, 6.17, 6.19, 6.21, 6.26, 6.29, 6.30, 6.33, 6.34, 6.36, 6.51, 6.89

Even Answers:

6.26 = (3E6 L)

6.30 = (1.87 atm)

6.34 = (2.8 L)

6.36 = (43.9 ml)

Part II - 6.62, 6.63, 6.64, 6.68, 6.70, 6.72 and Chapter 1 - 1.56, 1.57, 1.58, 1.76

Even Answers:  

6.62 = (0.232 cal . g-1 . oC-1)

6.64 = (240 cal)

6.68 = (1860 cal)

6.70 = (5400 cal + 630 cal = 6030 cal = 6.0 kcal, 630 cal)

6.72 = (89.1 L)

1.56 = (2.1E3, 5.1E3, 9.9E4, 2.5E3)

1.58 = (1.5E2)

1.76 = (Mercury, 162, 0.17 graphite)

Chapter 7 - Solutions and Colloids

7.14, 7.20, 7.26, 7.28, 7.30, 7.33, 7.35, 7.37, 7.43, 7.45, 7.61, 7.63, 7.67, 7.69, 7.71, 7.86, 7.90  

7.14 = (water)

7.20 = (unsaturated)

7.26 = (Warm water contains less oxygen than cold water.  The fish die because of lack of oxygen)

7.28 = (a)

7.30 = (26.60 g H2S, 1.515 g benzene; 4.28 g dimethyl sulfoxide)

7.86 = (Methanol is more efficient. It has a lower molecular weight; hence there are more moles in the same mass.)

7.90 = (Take 38.6 ml of the concentrated solution, add enough water to bring to 300 ml volume.)

Chapter 8 - Reaction Rates and Chemical Equilibrium

8.11, 8.17, 8.21, 8.25, 8.31, 8.33, 8.38, 8.41  

Even Answers:  

8.38 = (R, L, L, L, No shift, R)

Chapter 9 - Acids and Bases

9.20, 9.29, 9.33, 9.37, 9.39, 9.45, 9.80  

Even Answers:  

9.20 = (HSO4-, H2BO3-, I-, H20, NH3, PO43-)

9.80 = (pH=0, 1M)

Chapter 3 - Nuclear Chemistry

3.13, 3.18, 3.20, 3.24, 3.26, 3.28, 3.29, 3.31, 3.45, 3.55, 3.57, 3.69  

Even Answers:  

3.18 = (159Gd, 141La, 242Cm)

3.20 = (206Tl, 234U, 170Yb)

3.24 = (In the first step, alpha emission occurs; in the second and third steps, beta emissions occur.)

3.26 = (28Si, 142Xe, 1n, 210Po, 13N)

3.28 = (0.295 mg)

Chapter 10 - Organic Chemistry

10.17, 10.25, 10.27  

 

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