Questions: Solubility is the concentration of unsaturated ions in solution. Ksp is the same as the solubility. Ksp is an equilibrium constant and solubility is the concentration of a saturated solution. Ksp is the solubility product constant for a precipitate. Solubility = Kw times Ksp.

Solution Steps

Solubility refers to the concentration of a solute that can dissolve in a solvent to form a saturated solution at a given temperature. It is typically expressed in terms of molarity (moles per liter).

\( K_{\text{sp}} \) is the solubility product constant, which is an equilibrium constant for the dissolution of a sparingly soluble ionic compound. It represents the product of the molar concentrations of the constituent ions, each raised to the power of their stoichiometric coefficients.

1. "Solubility is the concentration of unsaturated ions in solution." - This is incorrect. Solubility refers to the concentration of ions in a saturated solution.
2. "$K_{\text{sp}}$ is the same as the solubility." - This is incorrect. \( K_{\text{sp}} \) is the solubility product constant, not the solubility itself.
3. "$K_{\mathrm{sp}}$ is an equilibrium constant and solubility is the concentration of a saturated solution." - This is correct. \( K_{\text{sp}} \) is indeed an equilibrium constant, and solubility is the concentration of a saturated solution.
4. "$K_{\text{sp}}$ is the solubility product constant for a precipitate." - This is correct. \( K_{\text{sp}} \) is the solubility product constant for a sparingly soluble precipitate.
5. "Solubility \(= K_{\mathrm{w}} \times K_{\text{sp}}\)." - This is incorrect. Solubility is not directly related to \( K_{\mathrm{w}} \) (the ion-product constant for water) and \( K_{\text{sp}} \) in this manner.

Final Answer