AP Chemistry
7.11 Introduction to Solubility Equilibria
A student investigates the solubility of three generic sparingly soluble salts in pure water at \(25^\circ\text{C}\). The chemical formula and solubility product constant (\(K_{sp}\)) for each salt are provided in the table below.
Which of the following correctly ranks the three salts in order of greatest to least molar solubility in pure water at \(25^\circ\text{C}\)?
| Salt | Formula | \(K_{sp}\) at \(25^\circ\text{C}\) |
|---|---|---|
| Salt 1 | \(\text{MX}\) | \(1.0 \times 10^{-10}\) |
| Salt 2 | \(\text{QX}_2\) | \(4.0 \times 10^{-12}\) |
| Salt 3 | \(\text{ZX}\) | \(1.0 \times 10^{-14}\) |
Which of the following correctly ranks the three salts in order of greatest to least molar solubility in pure water at \(25^\circ\text{C}\)?
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