APFIVE Calculating Molar Solubility from Ksp
The solubility product constant, $$K_{sp}$$, for $$CaF_2$$ is $$3.9 \times 10^{-11}$$. What is the molar solubility of $$CaF_2$$?
A
$$4.0 \times 10^{-4}$$
B
$$2.0 \times 10^{-4}$$
C
$$1.3 \times 10^{-4}$$
D
$$3.9 \times 10^{-11}$$
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