The K_sp of Calcium Phosphate Is 1 × 10−³³

question 48

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

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