This video is about the AP Chemistry Investigation #5.

Sticky Question: How Do You Separate Molecules That Are Attracted to One Another?

In this video you will learn how to prepare a chromatography paper in order to separate the components of a mixture and how to calculate the retention factor (Rf) of each component.

The mixture used in this experiment contains the following dyes:

  • Blue 1
  • Red 40
  • yellow 5.

Five different solvents were tested:

  • Hexane
  • ethanol
  • 2-propanol
  • water
  • acetone.

Students studying Chemistry at different levels could highly benefit from this video.

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