Separating Colors with Paper Chromatography
Learning Objective
I can explain how paper chromatography separates mixtures of coloured substances, like inks in felt-tip pens, using a solvent.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Explain in your own words why a pencil is used to draw the start line in paper chromatography instead of a pen.
2. Imagine you are using paper chromatography to separate the dyes in a black marker. Explain what it means if one of the dyes travels further up the paper than the others.
3. You perform paper chromatography on two different green food colourings. Both show two spots at the same height. What can you conclude about the dyes in the two food colourings?
...and 4 more questions
Educational Video
Chromatograms & Calculating Rf Values - Chromatography - GCSE Chemistry | kayscience.com
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