Concerning the Reaction How Many Grams of C(graphite) Must Be Burned to Release

Multiple Choice

Concerning the reaction $\mathrm{C} \text { (graphite) }+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{CO}_{2}(\mathrm{~g}) \quad \Delta \mathrm{H}^{\circ}=-393 \mathrm{~kJ} / \mathrm{mol}$ how many grams of C(graphite) must be burned to release 275 kJ of heat

A) 0.70 g
B) 8.40 g
C) 12.0 g
D) 17.1 g
E) 22.3 g