Ethyl alcohol is produced by the fermentation of glucose, C6H12O6. C6H12O6 (s) → 2 C2H5OH (l) + 2 CO2 (g) ΔH° = – 69.1 kJ Given that the enthalpy of formation is – 277.7 kJ/mol for C2H5OH ( l) and – 393.5 kJ/mol for CO2 (g), find the enthalpy of formation for C6H12O6.