A chromatography paper has its origin 1.0 cm above the bottom edge. The solvent front reaches 9.0 cm above that edge. The centre of a dye spot is 5.8 cm above the edge.
Calculate the Rf value of the dye.
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6 papers · 420 marks. Each paper tests its own topics. Ideas from earlier topics can still be needed. Questions here are original practice, not past papers.