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Experiment 18: Chromatographic Separation for AP Chemistry

By — McGraw-Hill Professional
Updated on Feb 8, 2011

For a quick review on stoichiometry, refer to the following concepts:

Synopsis

Two or more substances are separated by the differences in their affinity to paper or some other material. This affinity is related to the intermolecular forces between the substances. (See the chapter on Solids, Liquids, and Intermolecular Forces.)

Equipment

      beaker(s)
      capillary tubes
      pipet
      test tube(s)
      ion-exchange resin or silica gel
      chromatography paper (filter paper)

Experiment 18: Chromatographic Separation

Measurements

In some cases, the distance a spot travels on the chromatographic media is measured. This requires the use of a ruler.

Calculations

There are usually no calculations.

Comments

Instead of an ion exchange resin or silica gel, it is possible to use filter paper as a chromatographic medium.

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