Use the reduction potential above to solve for the cell potential E°cell in volts for the corrosion of copper: Zn (s) + ½ O2 (g) + H2O → Zn²* (aq) + 20H (aq)
Use the reduction potential above to solve for the cell potential E°cell in volts for the corrosion of copper: Zn (s) + ½ O2 (g) + H2O → Zn²* (aq) + 20H (aq)
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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
Transcribed Image Text:Zn2+
(aq) + 2e → Zn (s) E°red = -O.76 V
½ O2 (g)+ H2O + 2e¯ → 2 OH (aq) Eºred =
+0.40 V
Use the reduction potential above to
solve for the cell potential E°cell in volts
for the corrosion of copper:
Zn (s) + ½ O2 (g) + H2O → Zn²* (aq) +
20H (aq)

Transcribed Image Text:From the result above, the cell potential
for the corrosion of Zinc is higher than
iron. The oxidation/corrosion of copper
is a MORE spontaneous reaction
compared to the oxidation/corrosion of
iron. Therefore, zinc is more prone to
oxidation compared to iron. We can say
that zinc is a more active metal than
iron.
Using the result for Nail D:
Does wrapping Zinc strip prevented the
Iron nail from undergoing
oxidation/rusting/corrosion?
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