Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter8: Electrochemistry And Ionic Solutions
Section: Chapter Questions
Problem 8.10E: For each of the following reactions, determine the overall balanced electrochemical reaction, its...
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Transcribed Image Text:Given the following reactions, find
the standard cell potential.
Anode: NO3- + 2H+ + e- --> NO2 +
H2O
Cathode: 2H+ + 2e- --> H2
Table 7.2 Standard potentials at 298 K. (a) In clectrochemical order
Reduction half-reaction
E"/V
Reduction half-reaction
EIV
Cu"+eCu
Se+ 2 Sn
Strongly oxidizing
+0.16
HXe0, + 21 + 2e XeO, + 3H,0
F+ 2e 2F
0,+ 2H" + 20, +H,0
5,0 +22S0
Ag +eA
Co" + Ce"
H,0, + 2H" +2e - 21,0
Au" +eAu
+3.0
+0.15
+2.87
Agle +e Ag+ Br
Ti" +eT"
2H" + 2H,
+0.07
+2.07
0.00
+2.05
a by definition
+1.98
-0.04
O, +10+ 2 HO +OF
+1.81
-0.06
+1.78
-013
In' In
Se+2e Sn
+1.69
-0.14
Pb+ 2e P
2HCIO+ 2H + 2e a, +21,0
Ce Ce
21 IBrO+21+ 2e B, + 2H,0
MnO;+ H + SeMn" + 4H,0
Mn +eMn
+1.67
-0.14
Agl g
Ni+2e NI
Co +2eCo
+1.63
-0.15
+1.61
-0.23
+1.60
-0.28
+1.51
In" + In
-0.34
+1.51
-0.34
Au+3e Au
+1.40
PESO, + 2e b + So
-0.36
+1.36
-0.37
Cr0 +14H +6e + 2Cr" +7H,0
0, +HO+ 2e 0, + 20H
0,+ 4H + 4 2H,0
do; + 21+ 2 do; +10
Mno, + 4H+ 2 Mn" + 21,0
Br,+ 2 2Br
Pu" +e Pu
NO, ++ eNO+ 2H,0
2Hg" + 2Hg
CIO+H.O+ 2 C+ 20H
+1.33
--0.40
+1.24
Inr In
-0.40
1.23
Fe+ Fe
In+ 2e In
+1.23
-0.44
+1.23
-0.44
+1.09
-0.48
40.97
In+In
-0.49
+0.96
0.61
+0.92
-0.74
+0.89
Za" +2 Zn
-0.76
Hg" +2e -Hg
NO, + 2H" +e NO, + HO
Cd(OH), + 2e Cd+ 20H
211,0+ 2e1, + 20T
C+2 Cr
+0.86
-081
+0.10
+0.80
-0.91
Hg" + 2e - 21lg
+0.79
Mn +2e Mn
-LI8
+0.77
V+ 2eV
-L19
BrO + H,0+ 2e -→Br +20H
HgS0, + 2e2g + So
Mno + 211,0+ 2e MeO, + 4OH
Mno, +eMno
I,+2e 21
T + 2Ti
AP+ Al
U + U
+0.76
-1.63
40.62
-1.66
+0.60
1.79
+0.56
-2.09
Mg" + 2eMg
Ce+ Ce
La+e La
Na +eNa
Ca+2e Ca
+0.54
-236
+0.52
-2.48
I+ 2e3
+0.53
-252
NIOOH +HO eNi(O), + Or
AgCro, + 2e2Ag+Co
+0.49
-271
+0.45
-2.87
0,+2H,0+ de4OH
do, +H0+2e - CO; +20H
[Fe(CN),+e[Fe(CN)J
Cu + 2eCu
Hg CI, + 2e+ 2Hg+20
Sr+ 2 Sr
Ba+ 2 la
Ra+ 2 Ra
40.00
-2.89
+0.36
-2.91
40.36
-2.92
+0.34
G+e+Cs
-2.92
40.27
Rb' +e+Rb
-2.93
40.22
K+rK
-2.93
B"+ i
+0.20
--305
Atkins 8th ed p 1005
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