AP Chemistry
3.10 Solubility
3.1 Intermolecular and Interparticle Forces
A student compares the relative solubilities of four alcohols in water, \(\text{H}_2\text{O}\), and hexane, \(\text{C}_6\text{H}_{14}\), at \(25^\circ\text{C}\). A small amount of each alcohol is added to a separate vial containing equal volumes of water and hexane. After each mixture reaches equilibrium, the student determines the ratio \(R\).
\[ R=\dfrac{[\text{alcohol}]_{\text{water}}}{[\text{alcohol}]_{\text{hexane}}} \]
Which choice correctly ranks the expected values of \(R\) from greatest to least?
\[ R=\dfrac{[\text{alcohol}]_{\text{water}}}{[\text{alcohol}]_{\text{hexane}}} \]
| Alcohol | Condensed structural formula |
|---|---|
| Methanol | \(\text{CH}_3\text{OH}\) |
| Ethanol | \(\text{CH}_3\text{CH}_2\text{OH}\) |
| 1-Butanol | \(\text{CH}_3(\text{CH}_2)_3\text{OH}\) |
| 1-Hexanol | \(\text{CH}_3(\text{CH}_2)_5\text{OH}\) |
Which choice correctly ranks the expected values of \(R\) from greatest to least?
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