The PH of a Saturated Solution of Cerium (III)hydroxide in Water

The pH of a saturated solution of cerium (III) hydroxide in water is 9.20. Use this data to calculate a value for the solubility product constant of cerium(III) hydroxide.Hint: Use an ICE table to help organize your given information and use pH to find the equilibrium [OH^-].

A) 2.5 × 10^-10
B) 8.4 × 10^-11
C) 4.0 × 10^-19
D) 2.1 × 10^-20
E) 6.3 × 10^-20