Physical Chemistry Third Edition

K Answers to Numerical Exercises and Odd-Numbered Numerical Problems 1323

7.43
a. 0 .0863 mol of NaOH
b. 0 .0890 mol of NaOH

7.45
a. K 1. 80 × 10 −^5
b. pOH 4. 92
m(OH−)m◦ 10 −^4.^92  1. 20 × 10 −^5
c.pOH 4. 80

7.47
a. K(323.15 K) 5. 746 × 10 −^14
b. m(H+) 2. 397 × 10 −^7 mol kg−^1 ,pH 6. 62
c.m(H+)/m◦ 3. 03 × 10 −^7
pH6.62

7.51
a. K400K 43. 6
b. xN 2  0 .121,xH 2  0 .363,xNH 3  0. 516

7.53
a. K 9. 59 × 10 −^6
b. K(373 K) 2. 70 × 10 −^4
c.P(H 2 )P(CO 2 ) 0 .492 bar
P(H 2 O)P(CO) 0 .00808 bar

7.55
a. ∆H◦ 151 .255 kJ mol−^1
∆G◦ 121 .175 kJ mol−^1
K 298 .15K 5. 90 × 10 −^22
b. K1000K 2. 34 × 10 −^3
c.T1499 K
d. K1000K 3. 11 × 10 −^3

7.57
a. K750K 9. 05 × 103
b. K750K 9. 7 × 103

7.59
a. K(750 K) 7. 64 × 10 −^12
b. K(750 K) 7. 65 × 10 −^12
c. K(750 K) 7. 64 × 10 −^12

7.61
∆G◦ 1 .3kJmol−^1
∆H◦ 36 .5kJmol−^1
∆S◦122JK−^1 mol−^1

7.63
c(GlyP)/c◦c(ADP)/c◦ 0. 00998
c(Gly)/c◦ 0. 00202
c(ATP)/c◦ 0. 000017

7.65

∆pH 5. 13

7.67

a. FALSE

b. TRUE

c.TRUE

d. TRUE

e.FALSE

f. FALSE

g. FALSE

Chapter 8 Exercises

8.3

b. E 1 .091 V

8.6

b. number 4950

8.7

E 1 .1076 V

8.8

E− 0 .0464 V

8.9

E◦(348.15 K) 0 .1899 V

8.10

pH 1. 100

8.12

E(II)−E(I) 0 .325 V

8.13

K 7. 6 × 1036

8.14

a. Ksp 6. 55 × 10 −^15

b. volume for 1.00 mol 45 .6m^3

area 0 .0283 m^2 283 cm^2

Chapter 8 Problems

8.1

|∇c| 4 × 107 mol L−^1 m−^1

8.3

a. ∆φ 0 .051 V

b. |E| 1. 03 × 107 Vm−^1

8.5

E 0 .2333 V