Solubility Review Questions Worksheet With Answers Page 8
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14SOLUBILITY REVIEW QUESTIONS
32.
What is the K
for CaCO
if 0.0014 grams can dissolve in water to make
sp
3
100.0 mL of solution?
a) 1.4 10
-4
b) 1.4 10
-5
c) 2.0 10
-8
d) 2.0 10
-10
33.
What is the relationship between the rate of dissolving and the rate of precipitation in a
saturated solution where excess solute is present?
a) The rate of dissolving equals the rate of precipitation.
b) The rate of dissolving is less than the rate of precipitation.
c) The rate of dissolving is greater than the rate of precipitation.
d) The rate of dissolving and the rate of precipitation are zero.
2+
34.
What is the [Ni
] in a saturated solution of Ni(OH)
?
2
a) Less than 0.10 M
b) Greater than 0.10 M but less than 1.0 M
c) Greater than 1.0 M but less than 5.0 M
d) Greater than 5.0 M
35.
Which of the following salts has the greatest solubility in water?
a) AgCl
b) BaSO
4
c) MgCO
3
d) NaCH
COO
3
36.
For the following solubility equilibrium, what is the K
expression?
sp
2 Ag
+
2-
Ag
S
+ S
2
(s)
(aq)
(aq)
+
2-
a) K
= [Ag
][S
]
sp
+
2-
b) K
= [2Ag
][S
]
sp
+
2
2-
c) K
= [Ag
]
[S
]
sp
+
2-
2
d) K
= [Ag
][S
]
sp
37.
A student prepares a saturated solution of lead sulphate by adding an excess of the
to 1.0 L of water. He finds that 3.4 10
-2
PbSO
g of PbSO
has dissolved. Based on
4(s)
4
this data, the K
of PbSO
is
sp
4
a) 1.1 10
-4
b) 1.2 10
-3
c) 1.3 10
-8
d) 3.4 10
-2
-
38.
What is the maximum number of moles of I
that may exist in a 1.0 L solution which
(aq)
] of 2.0 10
= 1.4 10
2+
-4
-8
has a [Pb
M ? (K
of PbI
)
sp
2
a) 1.4 10
-2
mol
b) 3.5 10
-5
mol
c) 7.0 10
-5
mol
d) 8.4 10
-3
mol
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