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8 Cards in this Set
- Front
- Back
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Mobile phase |
Part of experiment that moves Always the solvent |
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Stationary phase |
Part of the experiment that does not move Always the paper |
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Strong attraction to the solvent |
Pigment moves quickly and far up |
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Strong attraction to the paper |
Moves slow and not very far up |
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Retention factor (Rf value) |
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Why is a pencil line used? |
Pencil will not dissolve in the solvent |
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Why are small amounts of the substance used? |
Small amounts so they do not mix |
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Why are spots above the level of the solvent? |
So spots do not dissolve into the solvent in the beaker |
