Question

Nitromethane burns as fuel according to the following balanced combustion equation: 2 CH3NO2(l) + 3/2 O2(g) --> 2 CO2(g) + 3 H2O(g) + N2(g)

DHrxn = -1418 kJ. The standard enthalpy of combustion for nitromethane is -709.2 kJ/mol. Calculate the standard enthalpy of formation for nitromethane. Answer in kJ/mol.