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D= Delta symbol   Using Hess’s law (the indirect method) show how you can combine the following chemical reactions to determine the DHrxn for the following reaction.   Zn (s)  +  1/8 S8  (s) +  2 O2 (g) -->  ZnSO4 (s)                  Goal: Determine DHrxn? Using the reactions below   Zn (s)  +  1/8 S8  (s)  -->  ZnS (s)                                                     DHrxn=A 2 ZnS (s) + 3 O2 (g) -->  2 ZnO (s)  + 2 SO2 (g)                             DHrxn=B 2 SO2 (g) + O2 (g)  -->  2 SO3 (g)                                                  DHrxn=C ZnSO4 -->   ZnO (s)  +  SO3 (g)                                                   DHrxn=D

D= Delta symbol   Using Hess’s law (the indirect method) show how you can combine the following chemical reactions to determine the DHrxn for the following reaction.   Zn (s)  +  1/8 S8  (s) +  2 O2 (g) -->  ZnSO4 (s)                  Goal: Determine DHrxn? Using the reactions below   Zn (s)  +  1/8 S8  (s)  -->  ZnS (s)                                                     DHrxn=A 2 ZnS (s) + 3 O2 (g) -->  2 ZnO (s)  + 2 SO2 (g)                             DHrxn=B 2 SO2 (g) + O2 (g)  -->  2 SO3 (g)                                                  DHrxn=C ZnSO4 -->   ZnO (s)  +  SO3 (g)                                                   DHrxn=D

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
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D= Delta symbol

 

  1. Using Hess’s law (the indirect method) show how you can combine the following

chemical reactions to determine the DHrxn for the following reaction.

 

Zn (s)  +  1/8 S8  (s) +  2 O2 (g) -->  ZnSO4 (s)                  Goal: Determine DHrxn?

Using the reactions below

 

Zn (s)  +  1/8 S8  (s)  -->  ZnS (s)                                                     DHrxn=A

2 ZnS (s) + 3 O2 (g) -->  2 ZnO (s)  + 2 SO2 (g)                             DHrxn=B

2 SO2 (g) + O2 (g)  -->  2 SO3 (g)                                                  DHrxn=C

ZnSO4 -->   ZnO (s)  +  SO3 (g)                                                   DHrxn=D

                                               

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