Relative formula mass
What Relative formula mass means in Chemistry GCSE, as defined for AQA.
Definitions of Relative formula mass
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Reference: AQA
The sum of the relative atomic masses of all atoms in a substance's formula, found by multiplying each element's relative atomic mass by its subscript before adding.
The sum of the relative atomic masses of all atoms in a formula, given as Mᵣ.
The sum of all relative atomic masses in the formula, written as Mᵣ.
Topics that use Relative formula mass
- Moles (HT only) (AQA GCSE)
- Relative formula mass (AQA GCSE)
Related terms
- Balanced equations
- Balanced equations and coefficients
- Conservation of mass
- Electron counting
- Mass–mole conversions
- Molar mass
- Mole as the amount unit
- Mole calculations
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