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8.1 Purity, formulations and chromatography

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Question 7
F

Which of these is the correct way to calculate an Rf R_f\,Rf​ value?

[1]
A

Distance moved by the substance divided by distance moved by the solvent

B

Distance moved by the solvent divided by distance moved by the substance

C

Distance moved by the substance multiplied by distance moved by the solvent

D

Distance moved by the solvent subtracted from distance moved by the substance

Markscheme

8.1 Purity, formulations and chromatography Questions

  1. GCSE
  2. /Chemistry
  3. /8.1 Purity, formulations and chromatography

40 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.

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