What is the solubility-product constant, Ksp of barium carbonate, BaCO3? Its molar solubility is 1.1x10-4 M. BaCO3 (s) ⬄ Ba2+ (aq) + CO32- (aq)

Question

What is the solubility-product constant, Ksp of barium carbonate, BaCO3? Its molar solubility is 1.1x10-4 M. 

BaCO3 (s) ⬄ Ba2+ (aq) + CO32- (aq)

Answer 1

BaCO₃(s) <==> Ba²⁺(aq) + CO₃^2-(aq)

Ksp = [Ba²⁺][CO₃^2-] = (1.1x10^-4)(1.1x10^-4)

Ksp = 1.21x10^-8