Question

What is a molecular formula?

Answer 1

Hey!

*In simplest words, a molecular formula denotes the total number of atoms in a molecule.
For example- the molecular formula for water is H2O , it represents that there is 2 atom of hydrogen bonded with one atom of oxygen to create a molecule of water.

Hope it helps.

Answer 2

Molecular formula denotes the total number of atoms in a molecule.
Ex in CO2 it denotes that there are two atoms in carbon to form carbon dioxide.