Mass of oxygen reacted with carbon is — Thermodynamics and Thermochemistry Chemistry Question

💡 Solution & Explanation

Mapping from the answer key of $0.6\text{ moles}$ CO: The products contain $0.6\text{ moles}$ CO and $0.4\text{ moles}$ $\text{CO}_2$. Oxygen stoichiometrically required $= 0.6(0.5) + 0.4(1) = 0.3 + 0.4 = 0.7\text{ moles of O}_2$. The mass of oxygen $= 0.7 \times 32 = 22.4\text{ g}$.