Determine the standard enthalpy of formation of liquid methanol,CH3OH(l), using the following information:
C(graph) + O2 → CO2(g) ΔH° = -393.5 kJ/mol
H2(g) + (1/2)O2 → H2O(l) ΔH° = -285.8 kJ/mol
CH3OH(l) + (3/2)O2(g) →CO2(g) + 2H2O(l) ΔH° = -726.4 kJ/mol