🔬 Ksp Calculator – Solubility Product Constant

What is Ksp?

The solubility product constant, Ksp, is an equilibrium constant that describes how far a sparingly soluble ionic compound dissolves in water before reaching saturation. A smaller Ksp means the compound is less soluble.

How this calculator works

For a compound AₘBₙ that dissolves into m cations and n anions with molar solubility s, the equilibrium concentrations are [cation] = m·s and [anion] = n·s. Ksp is then calculated as Ksp = [cation]^m × [anion]^n = (m·s)^m × (n·s)^n.

Note: This calculation assumes the compound dissolves completely to the given stoichiometry with no common-ion effect, and is intended for general chemistry education and planning purposes.