Cambridge IGCSE Chemistry · Syllabus 0620 · Stoichiometry
Molecular formula
What is Molecular formula?
The molecular formula of a compound states the number and type of different atoms present in one molecule of that compound, for example C2H4 for ethene, which contains two carbon atoms and four hydrogen atoms per molecule.
This definition is part of the Stoichiometry chapter in Cambridge IGCSE Chemistry.