JAMB Chemistry 2024 Paper

First, write a balanced chemical equation of the reaction:

C$_{2}$H$_{5}$OH + 3 O$_{2}$ → 2 CO$_{2}$ + 3H$_{2}$O

3moles : 2 moles

Using n = $\frac{\text{mass}}{\text{Molar mass}}$, $\frac{6}{32}$ : x mole

0.1875 mole : x mole

By simple proportion, X = $\frac{0.1875 \times 2}{3}$

X = 0.125 mole