Answers to Problems of the A Groups
453
ml NaOH added
pH
00
100
50
1 17
10 0
1 37
24 0
2 69
24 9
3 70
25 0
7 00
25 1
10 30
26 0
11 29
30 0
11 96
CHAPTER 24
1 (a) 8 31 x 10-'
7
(e) 1 43 x 10~
16
(b) 1 07 x 10-'°
(f) 251 x 10~"
(c) 3 97 x 10~
15
(g) 5 50 x lO"
10
(d) 2 47 x 10~
9
(h) 1 90 x lO"
93
2 MnCO 3 , SrCrO 4 , Zn(OH) 2 , BaC 2 O 4 will dissolve
3 (a) no ppt
<
8 (a) 3 17 x lO"
9 M
(b) no ppt
(b) 3 73 x 10-'° M
(c) ppt
(c) 1 44 x 10~
7 M
(d) no ppt
(d) 7 94 x 10~
14 M
(e) no ppt
(e) 1 19 x lO'
10 M
(f) no ppt
/ ^ t
9 (a) Pb
2+ precipitates first
8 PP
(b) 3 04 x 106 M
4 (a) 1 26 x 10-" M
, n ,. ,
(b)473x lO3 M
10 323m 8
(c) 4 79 x 10~
5 M
11 4 67 x 10~
7 M
(d) 2 47 x ID7 M
12 7 35 x 10-%
(e) 1 17 x IQ3 M
(f) 4 29 x 106 M
13 1 50 x 1Q-" M
5 (a) 6 13 x lO3
g
14 0 138 M
(b) 2 93 x 10-" g
15 16 1 g
(c) 293 x 105 g
., „ „..,
.
,j( i u.i
u ^ ,-,
,« ,
16 00443 mole
(d) slightly more than 6 13 x 10"
3 g
17 700
6 (a) 0 135 g
(b) 4 63 x 10~
2 g
18 (a) -0 59
(c) 1 86 x 1C3 g
(b) 1 00 x 10"
4 M
7 (a) 600 x 1035
M
19 -079
(b)600x IO-«M
20 (a) _ Q84
(c) 1 25 x 10-" M
(b _. „
(d) 4 64 x 1031 M
\i 0 j j
(e) 1 60 x 10-"
6 M
(d) 7 7Q