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
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 159MP: A galvanic cell is based on the following half-reactions: In this cell, the copper compartment...
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Question
Kindly answer the third question
Transcribed Image Text:Oxidizing
Reducing
Electrode
EO
cathode - Eo
cell
anode = Eo
Agent
Agent
Potential (V)
Au3+(aq) + 3 e
Au(s)
+1.50
Brz(t) + 2 e
2 Br (aq)
+1.08
Cathode
Anode
Hg2+(aq) + 2 e
Hg(t)
+0.855
Ag*(aq) + e
Ag(s)
+0.80
Hg, 2+(aq) + 2 e
2 Hg(t)
+0.789
Cu2+(aq) + 2 e
Cu(s)
+0.337
Sn1+(aq) + 2 e
Sn2*(s)
+0.15
2 H30*(aq) + 2 e
H2(g) + 2 H20(s)
0.00
Sn2+(aq) + 2 e
Sn(s)
-0.14
Ni2+(aq) + 2 e
Cd2+(aq) + 2 e
Al3+(aq) + 3 e
Ni(s)
-0.25
Cd(s)
-0.40
Al(s)
-1.66
Mg2+(aq) + 2 e
Lit(aq) + e
Mg(s)
-2.37
Li(s)
-3.045
Click on an Oxidizing Agent and a Reducing Agent.
Choose a cathode half-reaction by clicking on an oxidizing agent in the table.
Choose an anode half-reaction by clicking on a reducing agent in the table.
The electrode potentials for each electrode and the resulting overall cell potential are displayed.
Select Ag* as the oxidizing agent.
What is the value of E°cathode?
0.80
V
Submit
Select Sn as the reducing agent.
What is the value of E°anode?
-0.14
V
Submit
What is the cell potential, E°cell, for the reaction?
2 Ag*(aq) + Sn(s) - 2 Ag(s) + Sn2*(ag)
X V
sqq9
Free
Energy
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