Page 1322 - Chemistry--atom first

1312 Answer Key
53. (a) 3.1 10–11; (b) [Cu2+] = 2.6 10–3; = 5.3 10–3 55. 1.8 10–5 g Pb(OH)2
57. 1.23 10−3 g Mg(OH)2
59. MnCO3 will form first, since it has the smallest Ksp value it is the least soluble. MnCO3 will be the last to precipitate, it has the largest Ksp value.
61. when the amount of solid is so small that a saturated solution is not produced 63.8 10–5 M
65.5 1023
67.
[Cd2+] = 9.5 10–5 M; [CN–] = 3.8 10–4 M 69.[Co3+] = 3.0 10–6 M; [NH3] = 1.8 10–5 M 71. 1.3 g
73. 0.79 g
75. (a)
(b)
(c)
(d)
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