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30. What is true when a battery (voltaic cell) is dead ? c. Ecell = 0 and Q = 0 a. O and Q = K Ecell = 0 and K= 0 е. cell b. Ecell = 0 and Q = K d. cell = 0 and Q = 0

30. What is true when a battery (voltaic cell) is dead ? c. Ecell = 0 and Q = 0 a. O and Q = K Ecell = 0 and K= 0 е. cell b. Ecell = 0 and Q = K d. cell = 0 and Q = 0

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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30. What is true when a battery (voltaic cell) is dead ? c. Ecell = 0 and Q = 0 a. E. сеll = 0 and Q = K e. Ecell = 0 and K = 0 b. Ecel = 0 and Q = K d. cell = 0 and Q = 0 An electrochemical cell is constructed with a zinc metal anode in contact with a 0.052 M solution of zinc(II) nitrate and a silver cathode in contact with a 0.0042 M solution of silver(I) nitrate. What is the cell potential of this electrochemical cell at 5°C? 31. Metal/Metal ion silver/silver(I) zinc/zinc(II) +0.799 V -0.762 V a. 1.656 V b. 1.465 V c. 1.561 V d. 1.370 V 1.609 V е. 32. What is the mass of copper used if it was oxidized to copper(II) over 35s, given the average electrical current delivered was 200 A? 0.102 g b. 1,020 g с. 2.30 g d. 4.60 g 1.00 g a. е.
Transcribed Image Text:30. What is true when a battery (voltaic cell) is dead ? c. Ecell = 0 and Q = 0 a. E. сеll = 0 and Q = K e. Ecell = 0 and K = 0 b. Ecel = 0 and Q = K d. cell = 0 and Q = 0 An electrochemical cell is constructed with a zinc metal anode in contact with a 0.052 M solution of zinc(II) nitrate and a silver cathode in contact with a 0.0042 M solution of silver(I) nitrate. What is the cell potential of this electrochemical cell at 5°C? 31. Metal/Metal ion silver/silver(I) zinc/zinc(II) +0.799 V -0.762 V a. 1.656 V b. 1.465 V c. 1.561 V d. 1.370 V 1.609 V е. 32. What is the mass of copper used if it was oxidized to copper(II) over 35s, given the average electrical current delivered was 200 A? 0.102 g b. 1,020 g с. 2.30 g d. 4.60 g 1.00 g a. е.
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