The thermochemical equation for the combustion of hexane is…

The thermochemical equation for the combustion of hexane is shown below.                  C6H14(g)  +  19/2 O2(g)  →  6 CO2(g)  +  7 H2O(g)                ΔH° = -4163 kJ What is the enthalpy change for the combustion of 2.50 g C6H14?  Molar mass of C6H14 = 86.18 g/mol