Given the following electrode reactions: 2+ Co +e Co“ E'=1,92 V 3+ Co(NH,) , +e Co(NH,), E-0,06 a. Is it possible to use an iron wire for the determination of ammonia? How would you do it if it were possible? b. What order would the electrode be, relative to ammonia? c. If the answer is yes, derive the Nernst equation for the electrode. If the answer is negative, explain why.

Chemistry by OpenStax (2015-05-04)
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Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter17: Electrochemistry
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Problem 21E: An active (metal) electrode was found to lose mass as the oxidation-reduction reaction was allowed...
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Given the following electrode reactions:
2+
Co +e
+ Co E=1,92 V
3+
Co(NH,),
+ e + Co(NH,), E=0,06
a. Is it possible to use an iron wire for the
determination of ammonia? How would
you do it if it were possible?
b. What order would the electrode be,
relative to ammonia?
c. If the answer is yes, derive the Nernst
equation for the electrode. If the answer is
negative, explain why.
Transcribed Image Text:Given the following electrode reactions: 2+ Co +e + Co E=1,92 V 3+ Co(NH,), + e + Co(NH,), E=0,06 a. Is it possible to use an iron wire for the determination of ammonia? How would you do it if it were possible? b. What order would the electrode be, relative to ammonia? c. If the answer is yes, derive the Nernst equation for the electrode. If the answer is negative, explain why.
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