Chemistry GCSE
Rf values
What Rf values means in Chemistry GCSE, as defined for AQA.
Definition of Rf values
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Reference: AQA
The distance moved by a substance compared with the distance moved by the solvent front, which can be compared with known values to help identify substances.
Topics that use Rf values
- Chromatography (AQA GCSE)
Related terms
- Chromatography
- Distribution between phases
- Practical measurement and accuracy
- Rate of movement
- Rf values and identification
- Separation of mixtures
- Separation techniques
- Effect of changing conditions
Using Rf values in the exam
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