Solubility Review Questions Worksheet With Answers
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14SOLUBILITY REVIEW QUESTIONS
Solubility Problem Set 1
1.
What is the solubility of calcium sulphate in M, g/L, and g/100 mL?
2.
What is the solubility of silver chromate? In a saturated solution of silver chromate,
what is the concentration of each ion?
3.
What is the solubility of silver chromate in a solution that is 0.24 M in silver nitrate?
4.
What is the maximum concentration of chromate ion that is allowed before silver chromate
-4
will precipitate if the silver ion concentration is 7.8 x 10
M?
5.
How many lead(II) and iodate ions are present in 3.8 L of a saturated solution
of lead(II) iodate?
-3
6.
Will a precipitate form if 34 mL of 8.8 x 10
M lead(II) nitrate are mixed with
-3
79 mL of 3.2 x 10
M sodium iodate?
-2
7.
How many precipitates will form if 25 mL of 7.5 x 10
M magnesium sulphate is mixed
-2
with 0.044 L of 3.8 x 10
M strontium hydroxide?
8.
How many grams of magnesium carbonate are dissolved in 2.3 L of a saturated solution?
9.
Devise a method to separate the following ions from a mixture and provide a net ionic
equation for each step:
+
2+
2+
2-
2-
-
a) Ag
, Sr
, and Cu
b) SO
, SO
, and Br
3
4
10.
Describe the changes to rate(dissolving), rate(crystallizing), solubility (“s”), and K
when
sp
additional compound is added to an already saturated solution of the compound.
Answers to Solubility Problem Set 2 (for questions on the other side):
-19
2+
2-
-3
1. 3.7 x 10
2. [Ca
] = [SO
] = 8.4 x 10
M
4
2+
-4
-
-4
3. [Ca
] = 2.3 x 10
M, [F
] = 4.6 x 10
-15
4. 8.5 x 10
g/L
-7
5. K
= 5.8 x 10
ppt forms
TIP
-7
6. K
= 9.4 x 10
ppt forms
TIP
-5
-9
7. a) 2.5 x 10
b) 3.7 x 10
o
-8
o
o
8. K
(at temperature X
C) = 1.1 x 10
, X
C > 25
C
sp
-3
-4
9. 1.3 x 10
M (pure water), 1.5 x 10
M (0.10 M Pb(NO
)
)
3
2
2+
2+
-3
10. a) Sr
b) [Sr
] = 6.6 x 10
M
1
11. 5.0 x 10
mL
12. 0.0162 M
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