**Educational Exercise: Calculating Enthalpy Change (\( \Delta H^{\circ} \))****Instructions:**While solving this problem, you may want to reference Section 5.7, Pages 187 - 190.Use values from Appendix C to calculate the standard enthalpy change (\( \Delta H^{\circ} \)) for the following reactions.---**Part C:****Reaction:**\[ 2\text{CuO(s)} + \text{NO(g)} \rightarrow \text{Cu}_2\text{O(s)} + \text{NO}_2\text{(g)} \]**Task:**Express your answer using three significant figures.**Input Box:**\( \Delta H^{\circ}_{\text{rxn}} = \) \_\_\_\_ kJ- Click "Submit" to enter your answer.- If you need help, click "Request Answer."---**Part D:****Reaction:**\[ 4\text{NH}_3\text{(g)} + \text{O}_2\text{(g)} \rightarrow 2\text{N}_2\text{H}_4\text{(g)} + 2\text{H}_2\text{O(l)} \]**Task:**Express your answer using five significant figures.**Input Box:**\( \Delta H^{\circ}_{\text{rxn}} = \) \_\_\_\_ kJ- Click "Submit" to enter your answer.- If you need help, click "Request Answer."**Note:** Use the provided tools and symbols to accurately write your calculations.

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You may want to reference (Pages 187 - 190) Section 5.7 while completing this problem. Part C Using values from Appendix C, calculate the value of AH° for each of the following reactions. 2CUO(s) +NO(g)→CU2O(s) +NO2 (g) Express your answer using three significant figures. ? ΔΗR kJ Submit Request Answer

You may want to reference (Pages 187 - 190) Section 5.7 while completing this problem. Part C Using values from Appendix C, calculate the value of AH° for each of the following reactions. 2CUO(s) +NO(g)→CU2O(s) +NO2 (g) Express your answer using three significant figures. ? ΔΗR kJ Submit Request Answer

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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55. Using Hess's law and equations 1-3 below, find ΔH° at 25°C for the oxidation of C2H5OH(l). C2H5OH(l) + 3O2(g) → 3H2O(l) + 2CO2(g) 1. C2H4(g)+3O2(g)→2CO2(g)+2H2O(l) ΔH°=-1411kJ 2. C(graphite)+3H2(g)+(1/2)O2(g)→C2H5OH(l) ΔH°=-278kJ 3. C2H4(g)+H2O(l)→C2H5OH(l) ΔH°= -44kJ A) 44 kJ B) 632 kJ C) -1367 kJ D) -1742 kJ E) none of these
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