What Is the Solubility Product Expression?


Quick Answer

The solubility product constant, or Ksp, is a mathematical expression that exhibits the solubility of an ionic compound. The higher the solubility product constant, the more dissociated an ionic compound can be in water.

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Full Answer

Soluble compounds dissociate into charged ions when placed in aqueous solutions. The Ksp of the compound equals the products of these individual ions raised to a power that is equal to the coefficients of the ions in a balanced solubility equilibrium reaction. Solubility product constants can be found mathematically from the solubility concentrations of ions and a balanced solubility compound reaction. The Ksp can also be used to determine the solubilities of individual ions in a saturated solution.

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