Empirical and Molecular Formula
The empirical formula shows the simplest whole-number ratio of atoms of each element in a compound. The molecular formula shows the actual number of atoms of each element in one molecule.
For example, ethane has the molecular formula C2H6 and the empirical formula CH3. Butene C4H8 has the empirical formula CH2.

Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
More in Formulae
All 5 lessons in Formulae · All OCR A-level Organic Chemistry topics