Calculate the molar heat of formation of nitrous acid HNO₂(aq) using the chemical equations below
NH4NO2(aq) --->N 2 (g)+2H 2 O(l)
NH3(aq) + HNO2(aq) --->NH 4 NO 2 (aq)
2NH3(aq) --->N 2 (g)+3H 2 (g)
Delta H deg = - 320.1kJ
Delta H deg = - 37.7kJ
Delta H deg = 169.9kJ
2H2(g) + O2(g) --->2H 2 O(l)
Delta H deg = - 571.6kJ