Key term for OCR GCSE Chemistry A, used in Purity and separating mixtures.
A numerical value used to identify substances in chromatography, calculated as: .
Retention Factor (Rf) appears in OCR GCSE Chemistry A revision content for Elements, compounds and mixtures, especially Purity and separating mixtures and Selecting Purification Methods.
Create a free account to access OCR GCSE Chemistry A revision notes, track progress, and practise related key terms.
