According to the general stoichiometry of alkane/arene combustion, determine the exact number of mol — Hydrocarbons Chemistry Question

💡 Solution & Explanation

The balanced chemical equation for the complete combustion of a hydrocarbon $C_xH_y$ is given by $C_xH_y + (x + \frac{y}{4})O_2 \to xCO_2 + \frac{y}{2}H_2O$. For benzene ($C_6H_6$), $x = 6$ and $y = 6$. The required moles of oxygen per mole of benzene = $6 + \frac{6}{4} = 6 + 1.5 = 7.5$ moles.