A certain half-reaction has a standard reduction potential "red = +0.84 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.50 V of electrical power. The cell will operate under standard conditions. FO

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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Cr2O72-(aq)+14H+(aq)+6e-→2Cr3+(aq)+7H2O(l) 1.36
Cu+(aq)+e-→Cu(s) 0.521
Cu2+(aq)+e-→Cu+(aq) 0.153
Cu2+(aq)+2e-→Cu(s) 0.342
F2(g)+2e-→2F-(aq) 2.866
Fe2+(aq)+2e-→Fe(s) -0.447
Fe3+(aq)+e-→Fe2+(aq) 0.771
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2H+(aq)+2e-→H2(g) 0.000
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PbSO4(s)+H+(aq)+2e-→Pb(s)+HSO4-(aq) -0.359
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Sc3+(aq)+3e-→Sc(s) -2.077
Sn2+(aq)+2e-→Sn(s) -0.138
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Sr2+(aq)+2e-→Sr(s) -2.899
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**Educational Resource: Understanding Standard Reduction Potentials**

**1. Minimum Standard Reduction Potential**

*Question:*
Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have?

*Instructions:*
- If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places.
- If there is no lower limit, check the "no" box.

*Options:*
- ☑️ yes, there is a minimum. \[ E^\circ_{\text{red}} = \] ⬜ V
- ⬜ no minimum

**2. Maximum Standard Reduction Potential**

*Question:*
Is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have?

*Instructions:*
- If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places.
- If there is no upper limit, check the "no" box.

*Options:*
- ⬜ yes, there is a maximum. \[ E^\circ_{\text{red}} = \] ⬜ V
- ⬜ no maximum

**3. Writing a Balanced Equation**

*Task:*
By using the information in the ALEKS Data tab, write a balanced equation describing a half-reaction that could be used at the cathode of this cell.

*Note:*
Write the half-reaction as it would actually occur at the cathode.

*Input Box:*
⬜ (Enter the balanced equation here)
Transcribed Image Text:**Educational Resource: Understanding Standard Reduction Potentials** **1. Minimum Standard Reduction Potential** *Question:* Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? *Instructions:* - If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places. - If there is no lower limit, check the "no" box. *Options:* - ☑️ yes, there is a minimum. \[ E^\circ_{\text{red}} = \] ⬜ V - ⬜ no minimum **2. Maximum Standard Reduction Potential** *Question:* Is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have? *Instructions:* - If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places. - If there is no upper limit, check the "no" box. *Options:* - ⬜ yes, there is a maximum. \[ E^\circ_{\text{red}} = \] ⬜ V - ⬜ no maximum **3. Writing a Balanced Equation** *Task:* By using the information in the ALEKS Data tab, write a balanced equation describing a half-reaction that could be used at the cathode of this cell. *Note:* Write the half-reaction as it would actually occur at the cathode. *Input Box:* ⬜ (Enter the balanced equation here)
A certain half-reaction has a standard reduction potential \( E_{\text{red}}^0 = +0.84 \, \text{V} \). An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.50 V of electrical power. The cell will operate under standard conditions.

*Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell.*
Transcribed Image Text:A certain half-reaction has a standard reduction potential \( E_{\text{red}}^0 = +0.84 \, \text{V} \). An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.50 V of electrical power. The cell will operate under standard conditions. *Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell.*
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