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Chromatography Rf Value Quiz

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Questions and Answers

What does Rf value quantify in chromatography?

The color intensity of the substances

The movement of the materials along the plate (correct)

The weight of the substances

The temperature of the solvent

In chromatography, what does Rf value equal to?

Temperature of the solvent divided by distance traveled by the substance

Weight of the substances divided by distance traveled by the solvent

Distance traveled by the substance divided by distance traveled by the solvent (correct)

Distance traveled by the solvent divided by distance traveled by the substance

What is the range of Rf value?

Between -1 and 1

Between zero and one (correct)

Between 0 and 100

Between 1 and 10

Study Notes

Rf Value in Chromatography

Rf value quantifies the distance traveled by a substance in a chromatogram relative to the distance traveled by the solvent front.
Rf value equals the ratio of the distance traveled by the substance to the distance traveled by the solvent front.
The range of Rf value is 0 to 1, where 0 indicates the substance did not move from the origin and 1 indicates the substance moved with the solvent front.

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Description

Test your understanding of the Rf value used in chromatography to quantify the movement of substances along the plate. Learn about how Rf is calculated and its significance in separation techniques.