🤓 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
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Our tutors have indicated that to solve this problem you will need to apply the Hess's Law concept. You can view video lessons to learn Hess's Law. Or if you need more Hess's Law practice, you can also practice Hess's Law practice problems.
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Based on our data, we think this problem is relevant for Professor Carrasquillo's class at UH.