Combined Science GCSE
R_f calculation
What R_f calculation means in Combined Science GCSE, as defined for AQA.
Definition of R_f calculation
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Reference: AQA
The distance travelled by the substance divided by the distance travelled by the solvent front, then rounded to a sensible number of significant figures.
Topics that use R_f calculation
- Chromatography (AQA GCSE)
Related terms
- Chromatogram
- Chromatography
- Distribution between phases
- Identification by comparison
- Identification of substances
- Identification using reference values
- Impure substance
- Measurement from a baseline
Using R_f calculation in the exam
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