The solubility of Fe(OH) 2 in water is 7.9 × 10-6 mol/L at 25° C. What is Ksp for Fe(OH) 2 at 25° C?
A) 4.9 × 10-16
B) 6.2 × 10-11
C) 2.5 × 10-10
D) 2.0 × 10-15
E) none of these
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