aqueous solution of CaCO3 are both 9.33×10−5 M . Calculate the solubility product, 𝐾sp , for CaCO3 .

Question

the concentrations of calcium and carbonate ions in a saturated aqueous solution of CaCO3 are both 9.33×10−5 M. Calculate the solubility product, 𝐾sp, for CaCO3.

Answer 1

CaCO₃(s) <==> Ca²⁺(aq) + CO₃^2-(aq)

Ksp = [Ca²⁺][CO₃^2-]

Ksp = (9.33x10^-5)(9.33x10^-5)

Ksp = 8.70x10^-9