Spec 1CH0
Revise Edexcel GCSE Chemistry 3.2.3 Paper chromatography and Rf values with the question bank, lessons, revision guides, and flashcards.
2.9 Describe paper chromatography as the separation of mixtures of soluble substances by running a solvent, the mobile phase, through the mixture on the paper, the stationary phase, which causes the substances to move at different rates. 2.10 Interpret a paper chromatogram, including determining whether a substance is pure or a mixture, identifying substances by comparison with known substances, and calculating Rf values. 2.11 Core practical: investigate the composition of inks using simple distillation and paper chromatography. Assessed at both Foundation and Higher tier.
