A standard galvanic cell is constructed in which a Cu²+ | Cu half cell acts as the cathode. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) Mn²*|Mn could be the other standard half cell. | The anode reaction could be Mn -> Mn²+ + 2e" | The cathode reaction is Cu -> Cu²+ + 2e" In the external circuit, electrons flow from the other compartment to the Cu²*|Cu compartment. Br, Br" could be the other standard half cell.
A standard galvanic cell is constructed in which a Cu²+ | Cu half cell acts as the cathode. Which of the following statements are correct? Hint: Refer to a table of standard reduction potentials. (Choose all that apply.) Mn²*|Mn could be the other standard half cell. | The anode reaction could be Mn -> Mn²+ + 2e" | The cathode reaction is Cu -> Cu²+ + 2e" In the external circuit, electrons flow from the other compartment to the Cu²*|Cu compartment. Br, Br" could be the other standard half cell.
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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Standard Reduction (Electrode) Potentials at 25 oC |
|
---|---|
Half-Cell Reaction | Eo (volts) |
Standard Reduction (Electrode) Potentials at 25 oC |
|
Half-Cell Reaction | Eo (volts) |
F2(g) + 2 e- 2 F-(aq) | 2.87 |
Ce4+(aq) + e- Ce3+(aq) | 1.61 |
MnO4-(aq) + 8 H+(aq) + 5 e- Mn2+(aq) + 4 H2O(l) | 1.51 |
Cl2(g) + 2 e- 2 Cl-(aq) | 1.36 |
Cr2O72-(aq) + 14 H+(aq) + 6 e- 2 Cr3+(aq) + 7 H2O(l) | 1.33 |
O2(g) + 4 H+(aq) + 4 e- 2 H2O(l) | 1.229 |
Br2(l) + 2 e- 2 Br-(aq) | 1.08 |
NO3-(aq) + 4 H+(aq) + 3 e- NO(g) + 2 H2O(l) | 0.96 |
2 Hg2+(aq) + 2 e- Hg22+(aq) | 0.920 |
Hg2+(aq) + 2 e- Hg(l) | 0.855 |
Ag+(aq) + e- Ag(s) | 0.799 |
Hg22+(aq) + 2 e- 2 Hg(l) | 0.789 |
Fe3+(aq) + e- Fe2+(aq) | 0.771 |
I2(s) + 2 e- 2 I-(aq) | 0.535 |
Fe(CN)63-(aq) + e- Fe(CN)64-(aq) | 0.48 |
Cu2+(aq) + 2 e- Cu(s) | 0.337 |
Cu2+(aq) + e- Cu+(aq) | 0.153 |
S(s) + 2 H+(aq) + 2 e- H2S(aq) | 0.14 |
2 H+(aq) + 2 e- H2(g) | 0.0000 |
Pb2+(aq) + 2 e- Pb(s) | -0.126 |
Sn2+(aq) + 2 e- Sn(s) | -0.14 |
Ni2+(aq) + 2 e- Ni(s) | -0.25 |
Co2+(aq) + 2 e- Co(s) | -0.28 |
Cd2+(aq) + 2 e- Cd(s) | -0.403 |
Cr3+(aq) + e- Cr2+(aq) | -0.41 |
Fe2+(aq) + 2 e- Fe(s) | -0.44 |
Cr3+(aq) + 3 e- Cr(s) | -0.74 |
Zn2+(aq) + 2 e- Zn(s) | -0.763 |
2 H2O(l) + 2 e- H2(g) + 2 OH-(aq) | -0.83 |
Mn2+(aq) + 2 e- Mn(s) | -1.18 |
Al3+(aq) + 3 e- Al(s) | -1.66 |
Mg2+(aq) + 2 e- Mg(s) | -2.37 |
Na+(aq) + e- Na(s) | -2.714 |
K+(aq) + e- K(s) | -2.925 |
Li+(aq) + e- Li(s) |
![A standard galvanic cell is constructed in which a Cu?* | Cu half cell acts as the cathode. Which of the following statements are correct?
Hint: Refer to a table of standard reduction potentials.
(Choose all that apply.)
Mn²+.
2*|Mn could be the other standard half cell.
The anode reaction could be Mn -> Mn²+ + 2e
| The cathode reaction is Cu -> Cu?+ + 2e"
| In the external circuit, electrons flow from the other compartment to the Cu²"|Cu compartment.
Br2|Br" could be the other standard half cell.
O O O O O](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F756e5f41-24a8-4ad5-bbf6-ede0df93f901%2Fc87dc992-97bb-476a-95fd-d963072e1616%2Fv7ifw3l_processed.png&w=3840&q=75)
Transcribed Image Text:A standard galvanic cell is constructed in which a Cu?* | Cu half cell acts as the cathode. Which of the following statements are correct?
Hint: Refer to a table of standard reduction potentials.
(Choose all that apply.)
Mn²+.
2*|Mn could be the other standard half cell.
The anode reaction could be Mn -> Mn²+ + 2e
| The cathode reaction is Cu -> Cu?+ + 2e"
| In the external circuit, electrons flow from the other compartment to the Cu²"|Cu compartment.
Br2|Br" could be the other standard half cell.
O O O O O
![A standard galvanic cell is constructed with Cu2*|Cu and Al*|Al half cell compartments connected by a salt bridge. Which of the following
statements are correct?
Hint: Refer to a table of standard reduction potentials.
(Choose all that apply.)
| The anode compartment is the Cu2"|Cu compartment.
O Cu is oxidized at the anode.
O Al is oxidized at the anode.
| In the external circuit, electrons flow from the Cu²"|Cu compartment to the Al3*Al compartment.
O As the cell runs, anions will migrate from the Cu²*|Cu compartment to the Al³*|Al compartment.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F756e5f41-24a8-4ad5-bbf6-ede0df93f901%2Fc87dc992-97bb-476a-95fd-d963072e1616%2Ft66w0ha_processed.png&w=3840&q=75)
Transcribed Image Text:A standard galvanic cell is constructed with Cu2*|Cu and Al*|Al half cell compartments connected by a salt bridge. Which of the following
statements are correct?
Hint: Refer to a table of standard reduction potentials.
(Choose all that apply.)
| The anode compartment is the Cu2"|Cu compartment.
O Cu is oxidized at the anode.
O Al is oxidized at the anode.
| In the external circuit, electrons flow from the Cu²"|Cu compartment to the Al3*Al compartment.
O As the cell runs, anions will migrate from the Cu²*|Cu compartment to the Al³*|Al compartment.
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