33f. Cu(s) can be used as the electrode in the Cr2O72-/Cr3+ half-cell. T F 33g. The Zn(s) electrode should react with water. т F 33h. Cl2 is a stronger oxidizing agent than Cr20,2-. T F Magnesium, Mg, is a more reactive metal than Zn. Substituting the Mg2+/Mg half-cell for the Zn2+/Zn half-cell will result in a battery that produces a smaller voltage. 33і. т F
33f. Cu(s) can be used as the electrode in the Cr2O72-/Cr3+ half-cell. T F 33g. The Zn(s) electrode should react with water. т F 33h. Cl2 is a stronger oxidizing agent than Cr20,2-. T F Magnesium, Mg, is a more reactive metal than Zn. Substituting the Mg2+/Mg half-cell for the Zn2+/Zn half-cell will result in a battery that produces a smaller voltage. 33і. т F
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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please only answer questions 33f-33i
Transcribed Image Text:33. The legendary Captain Nemo - made famous by the French author Jules Verne in his book 20000
Leagues Under The Sea – may have powered his submarine, the Nautilus, using a battery made up of the
Zn2+/Zn and the Cr20,2-/Cr3+ half-cells. The relevant half-reactions are shown in bold:
Au3+(aq) + 3e
Au(s)
+1.50 V
Cl2(g) + 2e
2C11-(aq)
+1.36 V
Cro,?-(aq) + 14 H1*(аq) + 6е
2 Cr3+(aq) + 7 H2O(e)
+1.23 V
Cu2+(aq) + 2e
Cu(s)
+0.34 V
2H20(l) + 2e
Н2(g) + 20H1- (aд)
0.00 V
Zn2+(aq) + 2e
Zn(s)
-0.76 V
=
Na1+(aq) + 1e
Na(s)
-2.71 V
33а.
Electrons flow from the Cr20,2-/Cr3+ half-cell to the Zn2+/Zn half-cell.
T
F
33b. The reducing agent is Zn(s) and the oxidizing agent is Cr20,2-(aq).
T
F
33c. The Zn2+/Zn half-cell is the cathode.
T
F
33d.
Cations move through the salt bridge toward the Zn2+/Zn half-cell.
T
F
33e. This battery will produce close to 1.72 volts of electrical energy.
T
F
33f. Cu(s) can be used as the electrode in the Cr20,2-/Cr3+ half-cell.
T
F
33g.
Zn(s) electrode should
with water.
F
33h. Cl2 is a stronger oxidizing agent than Cr20,7-.
T
F
33i. Magnesium, Mg, is a more reactive metal than Zn. Substituting the Mg2+/Mg half-cell
for the Zn2+/Zn half-cell will result in a battery that produces a smaller voltage.
T
F
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