Key term for OCR GCSE Chemistry B, used in Stoichiometry calculations.
The sum of the relative atomic masses (Ar) of all the atoms present in a chemical formula.
Relative formula mass (Mr) appears in OCR GCSE Chemistry B revision content for Chemical analysis, especially Stoichiometry calculations and Theoretical mass.
Create a free account to access OCR GCSE Chemistry B revision notes, track progress, and practise related key terms.
