Temos:

5,59 gr de benzoato de metila

3,758 gr de carbono

0,316 gr de hidrogenio

Logo:

\(\[\begin{align} & 3,758\text{ }g\text{ }\to \frac{3,758}{12} \\ & 3,758\text{ }g\text{ }\to \text{ }0,3131 \\ & 0,316\text{ }g\text{ }\to 0,316 \\ & 1,251\text{ }\to \frac{1,251}{16} \\ & 1,251\text{ }\to \text{ }0,078 \\ & \frac{0,316\text{ }}{0,078\text{ }}\to \text{ }4 \\ & \text{Logo}\text{, a formula minima sera:} \\ & \text{C4 H4 0 } \\ & \\ \end{align}\] \)