Relative Formula Mass
The relative formula mass is the mass of a formula unit compared to 1/12th the mass of a carbon-12 atom.
The relative formula mass of a formula unit is the sum of the relative atomic masses of the elements in the empirical formula.
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Key terms in this lesson
- Empirical formula
- The simplest whole number ratio of atoms of each element in a compound.
More in Amount of Substance
- Relative Atomic Mass
- Relative Molecular Mass
- The Mole and The Avogadro Constant
- Calculating the Number of Moles
- Example Question - 1
- Example Question - 2
- Mass Concentration
- Example Question - 1
All 33 lessons in Amount of Substance · All AQA AS-level Chemistry topics