# Empirical and Molecular Formulas

## Key Questions

The full formula of a molecule. It states how many of each element in the molecule.

#### Explanation:

In a molecular formula, it states the total number of atoms of each element in a molecule.

For example, the molecular formula of glucose is ${C}_{6} {H}_{12} {O}_{6}$, and we do not simplify it into $C {H}_{2} O$.

And for each compound, they all have a molecular formula, but some can be similar, and those are called isomers, which are common in organic chemistry.

Mixtures do not have a single molecular formula, as they are made of many different compounds.