Answer
Molecular formula is $C_{8}H_{9}NO_{2}$ .
Empirical formula = $C_{8}H_{9}NO_{2}$ .
Work Step by Step
In Acetaminophen there are eight Cabon atoms, two oxygen atoms, one nitrogen atom, and nine Hydrogen atoms.
Thus, the molecular formula is $C_{8}H_{9}NO_{2}$.
The empirical formula is the simple whole-number ratio of the molecular formula.
The above molecular formula is in a simple whole-number ratio. Thus, here the molecular formula and empirical formula are the same.
Empirical formula = $C_{8}H_{9}NO_{2}$ .
