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Question

In a saturated solution of cadmium carbonate at 25 °C both [Cd2+] and [CO3^2−]=1.0×10−6 M. Write an equilibrium expression for this compound.

𝐾sp=

Calculate the value of 𝐾sp for this compound.

𝐾sp=

Answer 1

CdCO₃(s) <==> Cd²⁺(aq) + CO₃^2-(aq)

Ksp = [Cd²⁺][CO₃^2-] ... equilibrium expression

Ksp = (1.0x10^-6)(1.0(x10^-6)

Ksp = 1.0x10^-12