Solubility Review Questions Worksheet With Answers Page 3
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14SOLUBILITY REVIEW QUESTIONS
1.
The equation for silver chromate dissolving in water is
2 Ag
+
2-
Ag
CrO
+ CrO
2
4(s)
(aq)
4
(aq)
What is the K
expression?
sp
+
2
2-
a) [Ag
]
[CrO
]
4
+
2-
2
b) [Ag
][CrO
]
4
+
2-
c) [2 Ag
][CrO
]
4
+
2
2
d) [Ag
]
[CrO
] / [Ag
CrO
]
4
2
4
2.
What is the solubility of silver chloride, AgCl, in water, given
(AgCl) = 1.8 10
-10
K
?
sp
a) 3.24 10
-20
M
b) 1.80 10
-10
M
c) 1.34 10
-5
M
d) 1.9 10
-3
M
3.
What is the solubility of lead II iodide (PbI
) in water, given
2
) = 7.10 10
-9
K
(PbI
?
sp
2
a) 7.10 10
-9
M
b) 8.44 10
-5
M
c) 1.92 10
-3
M
d) 1.21 10
-3
M
10.0 mL of 1.00 10
and 30.0 mL of 2.00 10
-5
-4
4.
M AgNO
M NaCl are mixed. K
3
sp
(AgCl) = 1.8 10
-10
. Which one of the following occurs?
a) Ion product is 3.75 10
-10
and precipitate forms.
b) Ion product is 3.75 10
-10
and precipitate does not form.
c) Ion product is 2.00 10
-9
and precipitate forms.
d) Ion product is 2.00 10
-9
and precipitate does not form.
5.
What is the highest concentration of magnesium ion possible at equilibrium in a
solution containing 2.0 10
) = 8.6
-2
2-
M oxalate ions (C
O
) given that K
(MgC
O
2
4
sp
2
4
-5
10
?
a) 4.3 10
-3
M
b) 5.16 10
-2
M
c) 1.04 10
-1
M
d) 2.33 10
-2
M
2+
6.
What is the equilibrium concentration of Sr
in a saturated aqueous solution of
(aq)
= 2.8 10
-7
SrSO
? (K
of SrSO
)
4
sp
4
a) 1.4 10
-7
M
b) 2.8 10
-7
M
c) 5.3 10
-4
M
d) 5.3 10
-3
M
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