College Chemistry Quiz
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CHEMICAL EQUILIBRIUM
Question 1
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The
K
s
p
K_{sp}
K
s
p
for calcium fluoride (
C
a
F
2
CaF_2
C
a
F
2
) is
3.9
×
10
−
11
3.9 \times 10^{-11}
3.9
×
1
0
−
11
at 25°C. What is the molar solubility of
C
a
F
2
CaF_2
C
a
F
2
in pure water at this temperature?
A
1.3
×
10
−
11
1.3 \times 10^{-11}
1.3
×
1
0
−
11
M
B
2.1
×
10
−
4
2.1 \times 10^{-4}
2.1
×
1
0
−
4
M
C
6.2
×
10
−
6
6.2 \times 10^{-6}
6.2
×
1
0
−
6
M
D
1.2
×
10
−
5
1.2 \times 10^{-5}
1.2
×
1
0
−
5
M
E
3.4
×
10
−
4
3.4 \times 10^{-4}
3.4
×
1
0
−
4
M
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