General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.90QP: The cell potential of the following cell at 25C is 0.480 V. ZnZn2+(1M)H+(testsolution)H2(1atm)Pt...
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Relationships among E° cellv G°, and K
Transcribed Image Text:20.67 What is AG° for the following reaction?
21¯(aq) + Cl2(g)
I2(s) + 2C1¯(aq)
Use data given in Table 20.1.
Transcribed Image Text:Standard Electrode (Reduction) Potentials in Aqueous Solution
TABLE 20.1
at 25°C*
Cathode (Reduction)
Half-Reaction
Standard
Potential,
E (V)
Li*(aq) + e= Li(s)
Na (aq) + e Na(s)
Mg*(aq) + 2e = Mg(s)
Al*(aq) + 3e = Al(s)
2H,0(1) + 2e =H2(g) + 20H (aq)
Zn²*(aq) + 2e Zn(s)
Cr*(aq) + 3e = Cr(s)
Fe(aq) + 2e Fe(s)
Cd2*(aq) + 2e
-3.04
-2.71
-2.38
-1.66
-0.83
-0.76
-0.74
2+
-0.41
Cd(s)
-0.40
2+
Ni(ag) + 2e =
Ni(s)
-0.23
2+
Sn-(aq) + 2e Sn(s)
Pb2(aq) + 2e = Pb(s)
Fe (aq) + 3e Fe(s)
2H (aq) + 2e
Sn** (aq) + 2e = Sn*(aq)
Cu²*(aq) + e = Cu*(aq)
Cu*(aq) + 2e = Cu(s)
IO (aq) + H2O(1) + 2e I (aq) + 20H (aq)
Cu (aq) + e =Cu(s)
L(s) + 2e = 21 (ag)
Fe*(aq) + e Fe²*(aq)
2+(ag) +2e =2Hg(l)
-0.14
-0.13
3+
-0.04
H2(8)
0.00
2+
0.15
0.16
0.34
0.49
0.52
0.54
0.77
0.80
Ag (aq) + e = Ag(s)
Hg (aq) + 2e Hg(l)
CIO (aq) + H,0(1) + 2e = Cl (aq) + 20H (aq)
2Hg(aq) + 2e =Hg2-"(aq)
NO3 (aq) + 4H (aq) + 3e = NO(g) + 2H,O(1)
Br2(1) + 2e = 2Br (aq)
02(g) + 4H"(aq) + 4e 2H20(1)
Cr20, (aq) + 14H*(aq) + 6e =2Cr*(aq) + 7H2O(1)
Cl2(g) + 2e 2C1 (aq)
MnO4 (aq) + 8H*(aq) + 5e Mn2*(aq) + 4H,O(1)
H2O2(aq) + 2H"(aq) + 2e = 2H,O(I)
S,Og (aq) + 2e = 2S0,2 (aq)
F2(g) +.2e 2F (aq)
0.80
2+
0.85
0.90
2+
0.90
0.96
1.07
1.23
1.33
1.36
1.49
1.78
2.01
2.87
*See Appendix I for a more extensive table.
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