(40) GCSE Chemistry Revision "Paper Chromatography"

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10 Terms

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Chromatography

A separation technique used to separate mixtures based on different solubilities.

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Paper Chromatography

A method of chromatography where the stationary phase is paper and the mobile phase is a solvent.

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Stationary Phase

The phase in chromatography that does not move, in this case, the chromatography paper.

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Mobile Phase

The phase in chromatography that moves, typically a solvent that dissolves the substances.

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Solvent

A liquid that is used to dissolve substances in chromatography.

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Solubility

The ability of a substance to dissolve in a solvent, affecting how far the substance travels in chromatography.

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Single Spot

In chromatography, indicates a pure compound that produces one color band.

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Mixed Colors

In chromatography, indicates a mixture of substances that shows multiple color bands.

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RF Value

A ratio used in chromatography that helps to identify compounds based on their distance traveled.

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Pencil Line in Chromatography

Drawn to prevent ink from dissolving and affecting the results, as pen ink could dissolve into the solvent.