Octane undergoes combustion according to the following react…

Octane undergoes combustion according to the following reaction? 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O ΔH°rxn = -11018 kJ  How much heat can be produced from [x] g of octane. The molar mass of octane is 114.33 g/mole.   Enter your number as a positive value in kJ with the correct number of significant figures and units.