Which of the following metals can be the most effective sacrificial anode to prevent the oxidation/corrosion of Ni? Standard reduction potential values: Ca+²/Ca: -2.840 V Na+/Na: -2.713 V Ni+2/Ni: -0.257 V H*/H₂: 0.000 V Cu+¹/Cu: +0.520 V Ag+¹/Ag: +0.800 V

Which of the following metals can be the most effective sacrificial anode to prevent the oxidation/corrosion of Ni? Standard reduction potential values: Ca+²/Ca: -2.840 V Na+/Na: -2.713 V Ni+2/Ni: -0.257 V H*/H₂: 0.000 V Cu+¹/Cu: +0.520 V Ag+¹/Ag: +0.800 V

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 61QAP

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Question

Which of the following metals can be the most effective sacrificial anode to prevent the oxidation/corrosion of Ni?
Standard reduction potential values:
Ca+²/Ca: -2.840 V
Na+/Na: -2.713 V
Ni+2/Ni: -0.257 V
H*/H₂: 0.000 V
Cu+¹/Cu: +0.520 V
Ag+¹/Ag: +0.800 V
O a. Ca
O b. H+
O c. Ag
O d. Na
O e. Cu

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