AP Chemistry
3.9 Separation of Solutions and Mixtures
3.1 Intermolecular and Interparticle Forces
A student performs paper chromatography to separate the components of a mixture containing three different dyes: Dye 1, Dye 2, and Dye 3. The stationary phase consists of highly polar cellulose paper, and the mobile phase is a nonpolar solvent, hexane (\(\text{C}_6\text{H}_{14}\)). The solvent front travels a total distance of \(10.0\text{ cm}\). The student records the distance traveled by each dye spot and calculates the retention factor (\(R_f\)) for each component, as shown in the table below.
Based on the data in the table, which of the following statements correctly compares the relative polarities and intermolecular interactions of the dyes?
| Component | Distance traveled (\(\text{cm}\)) | \(R_f\) |
|---|---|---|
| Dye 1 | \(2.0\) | \(0.20\) |
| Dye 2 | \(5.5\) | \(0.55\) |
| Dye 3 | \(8.5\) | \(0.85\) |
Based on the data in the table, which of the following statements correctly compares the relative polarities and intermolecular interactions of the dyes?
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