The K_sp of Calcium Phosphate Is 1 × 10−³³

Multiple Choice

The K_sp of calcium phosphate is 1 × 10−³³.What is the concentration of Ca²⁺ in equilibrium with Ca₃(PO₄) ₂(s) if [PO₄³⁻] = 1 × 10−⁵ M?

A) 1 × 10−²⁸ M
B) 1 × 10−²³ M
C) 1 × 10−¹¹ M
D) 5 × 10−¹⁰ M
E) 2 × 10−⁸ M