What is the difference between empirical and molecular formula

For example, why is Benzene's empirical formula CH but its molecular formula is C(little)6H(little)6?
What does the empirical formula tell us about a substance?

thank you :)

the empirical formula is just to show the ratio of atoms in a molecule so it will always be as low numbers as possible. The molecular formula shows how many of atom each actually exist in the molecule.

molecular formula depicts the number of atoms in the molecule.

empirical formula depicts the proportion of the elements.