1. Gasohol contains ethanol (C2H5OH), which when burned reacts with oxygen to produce CO2 and H2O. How much heat is released when 12.5 g of ethanol burns? C2H5OH + 3O2 –> 2CO2 + 3H2O delta H= -1235 kJ AND 2. Hydrogen gas and fluorine gas react to produce hydrogen fluoride. Calculate the heat change (in kJ) for the conversion of 15.0 g of hydrogen gas to hydrogen fluoride gas at constant pressure. H2 + F2 –> 2HF deltaH= -536 kJ