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What is the time required to produce Select one: a. 3.10 hours b. 2.29 hours c. 1.10 hours d. 4.86 hours

What is the time required to produce Select one: a. 3.10 hours b. 2.29 hours c. 1.10 hours d. 4.86 hours

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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What is the time required to produced 11.5 g of pure copper metal from molten copper ore via electrolysis if the cell is operated at 4.2 A? Select one: a. 3.10 hours b. 2.29 hours C. 1.10 hours d. 4.86 hours
Transcribed Image Text:What is the time required to produced 11.5 g of pure copper metal from molten copper ore via electrolysis if the cell is operated at 4.2 A? Select one: a. 3.10 hours b. 2.29 hours C. 1.10 hours d. 4.86 hours
If the electrochemical cell in figure 1 is composed of zinc (reduction potential -0.76 V) and copper (reduction potential +0.34 V) electrodes, immersed in 1 M solutions of their respective salts, what would be the expected to observation in the cell labelled (d) if the solution is copper sulfate? Voltmeter (a) + (b) (c) (d) Figure 1. Electrochemical cell Select one: a No change in solution colour or electrode size. b. Solution colour becomes more intense and the electrode decrease in size. c. Solution colour fades and the electrode decrease in size. d. Solution colour fades and the electrode increase in size.
Transcribed Image Text:If the electrochemical cell in figure 1 is composed of zinc (reduction potential -0.76 V) and copper (reduction potential +0.34 V) electrodes, immersed in 1 M solutions of their respective salts, what would be the expected to observation in the cell labelled (d) if the solution is copper sulfate? Voltmeter (a) + (b) (c) (d) Figure 1. Electrochemical cell Select one: a No change in solution colour or electrode size. b. Solution colour becomes more intense and the electrode decrease in size. c. Solution colour fades and the electrode decrease in size. d. Solution colour fades and the electrode increase in size.
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