🤓 Based on our data, we think this question is relevant for Professor Carrasquillo's class at UH.
Using data from the following reactions and applying Hess's law, calculate the heat change for the slow reaction of zinc with water:
Zn (s) + 2H2O (l) → Zn2+ (aq) + 2OH- (aq) + H2 (g) ΔH°rxn = ?
H+ (aq) + OH- (aq) → H2O (l) ΔH°rxn, 1 = -56 kJ/mol H2O
Zn (s) → Zn2+ (aq) ΔH°rxn, 2 = -153.9 kJ
1/2 H2 (g) → H+ (aq) ΔH°rxn, 3 = 0.0 kJ