Question

The equilibrium expression Ksp

Answer 1

The solubility product constant, Ksp​, is the equilibrium constant for a solid substance dissolving in an aqueous solution.

It represents the rate at which a solute dissolves in solution. The more soluble a substance is, the higher the Ksp value it has.

In general, for a chemical reaction

M_aX_b(s) <=> aM^b+_(aq) + bX^a-_(aq)

Its Ksp is expressed as

Ksp = [M^b+]^a[X^a-]^b