How paper chromatography works
How paper chromatography works
In paper chromatography, the paper is the stationary phase because it stays in place. The solvent is the mobile phase because it moves through the paper and carries dissolved substances.
Step-by-step lessons on Edexcel GCSE Chemistry 3.2.3 Paper chromatography and Rf values. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.