Zn(s)+2H,O(1) Zn²* (aq) + 20H¯(aq) + H2(g) using data from the following reactions and applying Hess's law. н' (ад) +ОН (ag) —> → H,O(1) AH - 56.0 kJ 'rxn1 Zn (s) → Zn²*(aq) AH – 153.9 kJ rxn2 H, (3) → H* (aq) 0.0 kJ %3D rxn3

Zn(s)+2H,O(1) Zn²* (aq) + 20H¯(aq) + H2(g) using data from the following reactions and applying Hess's law. н' (ад) +ОН (ag) —> → H,O(1) AH - 56.0 kJ 'rxn1 Zn (s) → Zn²(aq) AH – 153.9 kJ rxn2 H, (3) → H (aq) 0.0 kJ %3D rxn3

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Calculate the heat change (AH°xn) for the slow reaction of zinc with water
Zn (s) +2H,0(1)
Zn²* (aq)+20H¯ (aq) +H2(g)
using data from the following reactions and applying Hess's law.
н' (ag) +ОН (ад) — н,о(1)
AH
- 56.0 kJ
'rxn1
Zn (s) → Zn²+,
(аq)
AH
- 153.9 kJ
'rxn2
H, (g)
→ H* (aq)
AH
0.0 kJ
rxn3

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