A student investigated a purple ink using paper chromatography.
The RfR_{\text{f}}Rf value of the blue dye in the ink is 0.72. The distance moved by the blue dye from the start line is 5.4 cm.
Calculate the distance moved by the solvent.
28 exam-style questions on AQA GCSE Chemistry 8.1 Purity, formulations and chromatography, covering 8.1.1 Pure substances, 8.1.2 Formulations, and 8.1.3 Chromatography. Each one has a worked solution and a mark scheme showing where the marks go.