1.
a. 0.912
b. 0.2180
c. -2.3082
d. -6.00
e. -9.35
2.
a. 7.640
b. 5.53 x 101
c. 6.90 x 10-4
d. 1.21 x 10-7
e. 10-126
3.
a. 886
b. 7.07 x 101
c. -1.6 x 10-3
4.
a. 1.3 x 102
b. 7.6 x 101
c. 2.1
5.
a. -3.80
b. -1.90
c. -7.60
6.
a. log x - log y
b. log x 1 log y
c. log x 1
2 log y
7. log x =
2 log y -
8. a. y =
12.4 - 2.0 log 38/5 =
12.4 - 3.2(log 3) =
10.9
b.
9.
a. 1.796
b. 2.000
c. -9.69
10.
a. 2.72
b. 8.21 x 10-2
c. 4.084 x 105
11.
a. 6.00
b. 1.583
c. 8.52
d. -0.78
12.
a. 1 x 10-4
b. 2.5 x 10-13
c. 7.2 x 10-4
d. 10
13. conc. H1
= 1.0 x
10-4
conc. S2- =
(1 x 10-21)/(1 x 10-8) =
1 x 10-13
14. Take the logarithms of both sides:
log (conc. H1)
1
log(conc. OH-) =
-14.00
-pH - pOH =
-14.00; pH 1
pOH = 14.00
15. Take the logarithm of both sides:
log Ka =
2 log(conc. H1)
- log(conc. HAc)
log Ka =
-2pH - log(conc. HAc)
16. a. E =
10.75
V 1
1.6(0.0591) log(conc. H1)
= 10.75
V - 0.0946 pH
b. 10.47
V
c. 2.6
17. f =
1.76 x 10-2
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