31. 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? Metal/Metal ion rel silver/silver(I) zinc/zinc(II) +0.799 V -0.762 V 1.656 V b. 1.465 V c. 1.561 V d. 1.370 V 1.609 V а. е.

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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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