е. Which metal is losing electrons?

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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Solve sub-question e and g
1.
This question is about the redox reaction involving the half equations:
Zn²+ + 2e 2 Zn
E® = - 0.76 volts
Cu2+ + 2e¯
2 Cu
E® = + 0.34 volts
а.
Draw a labelled diagram of a cell formed from copper, zinc and suitable
solutions.
b. Write an equation to show the overall reaction occurring when a current is drawn
from this cell.
c. Which of the two metals, zinc or copper, is the more reactive?
d. How is this apparent from the E° values above?
e. Which metal is losing electrons?
f.
How does this fit with the term OIL RIG?
g. The electrode potential (E value) for the copper half cell was found by combining
it with a standard hydrogen electrode. Draw a fully labelled diagram to show
how this would be done.
Transcribed Image Text:1. This question is about the redox reaction involving the half equations: Zn²+ + 2e 2 Zn E® = - 0.76 volts Cu2+ + 2e¯ 2 Cu E® = + 0.34 volts а. Draw a labelled diagram of a cell formed from copper, zinc and suitable solutions. b. Write an equation to show the overall reaction occurring when a current is drawn from this cell. c. Which of the two metals, zinc or copper, is the more reactive? d. How is this apparent from the E° values above? e. Which metal is losing electrons? f. How does this fit with the term OIL RIG? g. The electrode potential (E value) for the copper half cell was found by combining it with a standard hydrogen electrode. Draw a fully labelled diagram to show how this would be done.
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