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.

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.
Transcript text: Solubility is the concentration of unsaturated ions in solution. $K_{\text {sp }}$ is the same as the solubility. $K_{\mathrm{sp}}$ is an equilibrium constant and solubility is the concentration of a saturated solution. $K_{\text {sp }}$ is the solubility product constant for a precipitate. Solubility $=K_{\mathrm{w}} \times K_{\text {sp }}$.
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Solution

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Solution Steps

Step 1: Understanding Solubility

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).

Step 2: Understanding \( K_{\text{sp}} \)

\( K_{\text{sp}} \) 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.

Step 3: Clarifying the Statements
  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

\[ \boxed{\text{3. } K_{\mathrm{sp}} \text{ is an equilibrium constant and solubility is the concentration of a saturated solution.}} \] \[ \boxed{\text{4. } K_{\text{sp}} \text{ is the solubility product constant for a precipitate.}} \]

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