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Two concentration cells are prepared, both with 90.0 mL of 0.0100 M Cu(NO3)2 and a Cu bar in each half-cell. (a) In the first concentration cell, 10.0 mL of 0.500 M NH3 is added to one half-cell; the complex ion Cu(NH3)2+ forms, and Ecell is 0.129 V. Calculate Kffor the formation of the complex ion.(b) Calculate Ecell when an additional 10.0 mL of 0.500 M NH3is added. (c) In the second concentration cell, 10.0 mL of 0.500 M NaOH is added to one half-cell; the precipitate Cu(OH)2 forms (Ksp=2.2x10-20). Calculate Eocell. (d) What would the molarity of NaOH have to be for the addition of 10.0 mL to result in an Eocell of 0.340 V?

Two concentration cells are prepared, both with 90.0 mL of 0.0100 M Cu(NO3)2 and a Cu bar in each half-cell. (a) In the first concentration cell, 10.0 mL of 0.500 M NH3 is added to one half-cell; the complex ion Cu(NH3)2+ forms, and Ecell is 0.129 V. Calculate Kffor the formation of the complex ion.(b) Calculate Ecell when an additional 10.0 mL of 0.500 M NH3is added. (c) In the second concentration cell, 10.0 mL of 0.500 M NaOH is added to one half-cell; the precipitate Cu(OH)2 forms (Ksp=2.2x10-20). Calculate Eocell. (d) What would the molarity of NaOH have to be for the addition of 10.0 mL to result in an Eocell of 0.340 V?

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
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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Two concentration cells are prepared, both with 90.0 mL
of 0.0100 M Cu(NO3)2 and a Cu bar in each half-cell.
(a) In the first concentration cell, 10.0 mL of 0.500 M NH3 is added
to one half-cell; the complex ion Cu(NH3)2+ forms, and Ecell is

0.129 V. Calculate Kf
for the formation of the complex ion.
(b) Calculate Ecell when an additional 10.0 mL of 0.500 M NH3
is added.
(c) In the second concentration cell, 10.0 mL of 0.500 M NaOH
is added to one half-cell; the precipitate Cu(OH)2 forms (Ksp=2.2x10-20). Calculate Eocell.
(d) What would the molarity of NaOH have to be for the addition
of 10.0 mL to result in an Eocell of 0.340 V?

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