How would you calculate the empirical formula of acetic acid (CH3COOH)?

1 Answer
Oct 23, 2015

The empirical formula for acetic acid is CH2O.

Explanation:

CH3COOH can be written as C2H4O2.

An empirical formula represents the lowest whole number ratio of elements in a compound.

The subscripts in the formula C2H4O2 can be reduced to the simplest whole number ratio by dividing the subscripts in the molecular formula by 2.

The empirical formula of acetic acid is CH2O.