Consider the reaction CH4 + 20₂ = CO₂ + 2H₂O. If 8.01 grams of CH4 are burned in excess
O2, 445 kilojoules of heat are evolved. Heats of formation: CH4 = -74.8 KJ/mol, O₂ = 0,
CO2 = -393.5 KJ/mol Atomic masses: C = 12.01 g/mol H= 1.01 g/mol. O = 16.00 g/mol.
From these data, calculate the heat of formation of water.