# Is the empirical formula for a compound ever the same as its molecular formula? Why or why not?

##### 1 Answer
Oct 2, 2016

Yes, if the molecular formula cannot be simplified.

#### Explanation:

Take the molecular formula of methane for example, $C {H}_{4}$. It can't be simplified any further (unless you use fractions in the subscripts), and thus its empirical formula is also $C {H}_{4}$. Another example would be carbon dioxide, $C {O}_{2}$.