Purity and separating mixtures

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Question 13
Easy

A student performs a paper chromatography experiment to analyze a food coloring. After developing the chromatogram, the student measures the following distances from the baseline:

  • Distance travelled by the food coloring spot: 4.5 cm
  • Distance travelled by the solvent front: 7.5 cm

What is the Rf R_f\,Rf​ value of the food coloring?

0.60

1.67

3.00

0.40

Purity and separating mixtures Questions

  1. GCSE
  2. /Chemistry
  3. /Purity and separating mixtures