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Use Hess’s Law to calculate ΔH(tot): [tot] 2NO2(g) + 1⁄2O2(g) → N2O5(s)       ΔH(tot) = ___________? [1] N2O5(s) → 2NO(g) + (3/2)O2(g)       ΔH1 = 223.7 kJ [2] NO(g) + 1⁄2O2(g) → NO2(g)               ΔH2 = –57.1 kJ [tot] = __×[1] __×[2]: ____________→____________ ΔH(tot) = __×ΔH1 __×ΔH2 = ________ kJ

Use Hess’s Law to calculate ΔH(tot): [tot] 2NO2(g) + 1⁄2O2(g) → N2O5(s)       ΔH(tot) = ___________? [1] N2O5(s) → 2NO(g) + (3/2)O2(g)       ΔH1 = 223.7 kJ [2] NO(g) + 1⁄2O2(g) → NO2(g)               ΔH2 = –57.1 kJ [tot] = __×[1] __×[2]: ____________→____________ ΔH(tot) = __×ΔH1 __×ΔH2 = ________ kJ

Chemistry
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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Use Hess’s Law to calculate ΔH(tot):

[tot] 2NO2(g) + 1⁄2O2(g) → N2O5(s)       ΔH(tot) = ___________?

[1] N2O5(s) → 2NO(g) + (3/2)O2(g)       ΔH1 = 223.7 kJ

[2] NO(g) + 1⁄2O2(g) → NO2(g)               ΔH2 = –57.1 kJ

[tot] = __×[1] __×[2]: ____________→____________

ΔH(tot) = __×ΔH1 __×ΔH2 = ________ kJ

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