1. Calculate the potential of a platinum indicator electrode dipping into a solution that is 0.1M intin(IV) and 0.01M in tin(II).Sn+ + 2e- Sn?+E° = 0.14 v2. A silver metal indicating electrode and a standard hydrogen reference electrode are dipped intoa solution containing Ag*. From the potentiometric measurement, the potential at the silverelectrode is found to be +0.692 v. Calculate the molarity of silver(I) in the solution.Ag* + e- Ag(s)E° = 0.800 v3. A platinum indicator electrode dipping into a solution containing Fe and Fe2+ is used with astandard hydrogen reference electrode. If the measured difference in potential is +0.948 v,calculate the ratio of Fe to Fe2* in the solution.4. Calculate the potential of a platinum electrode in contact with a solution containing 0.1 M VO2*,0.1 M VO, and 4M perchloric acid.Vo* + 2H* + e- vo* + H20E° = 1.000 v

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1. Calculate the potential of a platinum indicator electrode dipping into a solution that is 0.1M in tin(IV) and 0.01M in tin(II). Sn+ + 2e- Sn2+ E° = 0.14 v

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry

Section: Chapter Questions

Problem 22.21QAP

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Question

100%

1. Calculate the potential of a platinum indicator electrode dipping into a solution that is 0.1M in
tin(IV) and 0.01M in tin(II).
Sn+ + 2e- Sn?+
E° = 0.14 v
2. A silver metal indicating electrode and a standard hydrogen reference electrode are dipped into
a solution containing Ag*. From the potentiometric measurement, the potential at the silver
electrode is found to be +0.692 v. Calculate the molarity of silver(I) in the solution.
Ag* + e- Ag(s)
E° = 0.800 v
3. A platinum indicator electrode dipping into a solution containing Fe and Fe2+ is used with a
standard hydrogen reference electrode. If the measured difference in potential is +0.948 v,
calculate the ratio of Fe to Fe2* in the solution.
4. Calculate the potential of a platinum electrode in contact with a solution containing 0.1 M VO2*,
0.1 M VO, and 4M perchloric acid.
Vo* + 2H* + e- vo* + H20
E° = 1.000 v

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