In the case of NH30H+ the situation is far more complex. You will consider N2, N20, NO, HNO2, NO2, and HNO3 as possible products. For now, we may describe the reaction as follows: x Fe3+ + NH3OH* x Fe2+ +? (1) x = moles of Fe3+ reacting (or Fe2+ produced) per mole of NH3OH* ? = unknown product (N2, N20, NO, HNO2, NO2, or HNO3) If, for example, the nitrogen-containing product were NO2, the oxidation half-equation for NH30H would be: NH30H + H20 → NO2 + 6 H* + 5 e- In that case, the overall balanced equation for the reaction of NH3OH and Fe3+ would be: 5 (Fe3+ + e- Fe2*) NH3OH* + H2O → NO2 + 6 H* + 5e- 5 Fe3+ + NH30H+ + H2O →5 Fe2+ + NO2 + 6 H* Thus, the stoichiometric ratio of Fe3+ to NH30H in this reaction would be 5:1. On the other hand, if the product were N2, then we would have: | 6 Q + Page 2 and so, overall, we would havea dferemt stoiciometric Tatio, 1.1 in this case:

In the case of NH30H+ the situation is far more complex. You will consider N2, N20, NO, HNO2, NO2, and HNO3 as possible products. For now, we may describe the reaction as follows: x Fe3+ + NH3OH* x Fe2+ +? (1) x = moles of Fe3+ reacting (or Fe2+ produced) per mole of NH3OH* ? = unknown product (N2, N20, NO, HNO2, NO2, or HNO3) If, for example, the nitrogen-containing product were NO2, the oxidation half-equation for NH30H would be: NH30H + H20 → NO2 + 6 H* + 5 e- In that case, the overall balanced equation for the reaction of NH3OH and Fe3+ would be: 5 (Fe3+ + e- Fe2) NH3OH + H2O → NO2 + 6 H* + 5e- 5 Fe3+ + NH30H+ + H2O →5 Fe2+ + NO2 + 6 H* Thus, the stoichiometric ratio of Fe3+ to NH30H in this reaction would be 5:1. On the other hand, if the product were N2, then we would have: | 6 Q + Page 2 and so, overall, we would havea dferemt stoiciometric Tatio, 1.1 in this case:

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 26Q: How can one construct a galvanic cell from two substances, each having a negative standard reduction...

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