crayatremblay crayatremblay 25-04-2024 Chemistry contestada If 8.97×1017 molecules of NO2 form HNO3 via the reaction below, what is the expected change in enthalpy for the system? 3 NO2 + H2O → 2 HNO3 + NO ΔH = -114.7 kJ/mol Express your answer in joules.