BRAINCAKEEmpirical Formula
The empirical formula is the simplest whole-number ratio of atoms of each element in a compound.
For example, ethane has the molecular formula C2H6 and the empirical formula CH3.
To find the empirical formula from mass or percentage data: divide the mass or percentage of each element by its Ar, then divide each answer by the smallest value to get the ratio.
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More in Organic Chemistry
- Carbon
- Molecular Formula
- Displayed Formula
- Structural Formula
- Skeletal FOrmula
- Bond Breaking
- Nomenclature
- Functional Groups
All 17 lessons in Organic Chemistry · All AQA AS-level Chemistry topics