Question

what is solubility product. in brief....

Answer 1

The solubility product is a heterogeneous equilibrium constant, a specific form of the equilibrium constant. It is relevant in saturated solutions in which an ionic compound has not fully dissolved.

Solubility products change with temperature, so the temperature at which a solubility product was measured must always be quoted.

Example 1
Consider an ionic compound A3B that partly dissolves in water. Most of the compound does not dissolve.

As usual, we write the concentrations of the ions as [A] and [B].

The solubility product, Ksp is given by:

Ksp = [A]3[B]

 

Answer 2

A substance's solubility product is the mathematical product of its dissolved ion concentrations raised to the power of their stoichiometric coefficients. Solubility products are relevant when a sparingly soluble ionic compound releases ions into solution.