4. *For the unbalanced reaction Fe3+(aq) +I-(aq) → Fe²*(aq) + I2(s) Balance the reaction and label the oxidation and reduction half reactions. b. Identify the anode and cathode c. What is the oxidizing agent? The reducing agent? d. Using the table of standard reduction potentials, calculate E° for this cell.

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Half-Reaction
E"(V)
Half-Reaction
E(V)
Ag *(aq) + e
AgBr(s) + e
AgCI(s) + e
Ag(CN), (aq) + e¯
Ag,CrO,(s) + 2 e
AgI(s) + e -
Ag(s)
Ag(s) + Br (ag)
Ag(s) + CI"(ag)
2 H,0(1) + 2 e
HO, (ag) + H,0(1) + 2 e - 3 OH (ag)
H,O,(aq) + 2 H*(aq) + 2 e -
Hg,2* (ag) + 2 e-
2 Hg* (aq) + 2 e
Hg**(aq) + 2 e
I(s) + 2 e
+0.799
H2(g) + 2 OH (aq)
-
-0.83
+0.095
+0.88
>
+0.222
2 H;O(1)
+1.776
Ag(s) + 2 CN (aq)
-0.31
2 Hg(1)
Hg,2+ (aq)
Hg()
21 (aq)
->
+0.789
2 Ag(s) + Cro, (ag)
-
+0.446
w
+0.920
Ag(s) + 1(aq)
Ag(S,O3)2 (aq) + e →
Al* (ag) vt 3 e Al(s)
H3ASO4(aq) + 2 H* (ag) + 2 e -
-0.151
+0.854
Ag(s) + 2 S,0,"(aq)
+0.01
+0.536
-1.66
2 10; (aq) + 12 H*(aq) + 10 e
+1.195
+0.559
12(s) + 6 H2O()
H3ASO;(ag) + H,0(1)
K*(aq) + e
Li*(ag) + e
Mg?*(ag) + 2 e-
Mn2+ (aq) + 2 e“
K(s)
Ba2+ (aq) + 2 e
Bio* (aq) + 2 H* (aq) + 3 e-
Br2(1) + 2 e - 2 Br (aq)
2 Bro; (ag) + 12 H*(aq) + 10 e -
-2.925
Ba(s)
-2.90
Bi(s) + H2O(1)
Li(s)
-3.05
+0.32
+1.065
Mg(s)
-2.37
+1.52
» Mn(s)
-1.18
MnO;(s) + 4 H*(aq) + 2 e-
Brz(1) + 6 H2O(1)
H2C,O4(ag)
+1.23
>
Mn*(aq) + 2 H;0()
2 CO:(g) + 2 H* (aq) + 2e →
Ca2+ (aq) + 2 e
Cd2+(aq) + 2 e
Ce*+(aq) + e →
Cl(g) + 2 e" - 2 CI (ag)
2 HCIO(ag) + 2 н*(аq) + 2 е
-0.49
MnO4 (aq) + 8 H* (aq) + 5 e --→
Ca(s)
Cd(s)
Ce* (aq)
-
-2.87
+1.51
Mn?*(ag) + 4 H;O()
-0.403
Mno, (ag) + 2 H,O(1) + 3 e
+0.59
+1.61
MnO2(s) + 4 OH"(aq)
+1.359
HNO,(aq) + H* (aq) + e"
N2(g) + 4 H20(!) + 4e
NO(g) + H2O(1)
4 OH (aq) + N,H4(aq)
N,H3*(aq)
+1.63
+1.00
Cl2(g) + 2 H2O(I)
-1.16
CIO (aq) + H,O(1) + 2 e
N2(g) + 5 H* (ag) + 4 e
NO, (aq) + 4 H* (aq) + 3 e --→ NO(g) + 2 H,O()
Na* (ag) + e – Na(s)
Ni?* (aq) + 2 e
Oz(g) + 4 H*(aq) + 4e
Oz(g) + 2 H;O(I) + 4 e 4 OH (aq)
O,(g) + 2 H* (ag) + 2e
O3lg) + 2 H*(aq) + 2 e
Pb* (aq) + 2 e Pb(s)
PbO2(s) + HSO, (aq) + 3 H*(aq) + 2 e
+0.89
-0.23
CI (ag) + 2 OH (aq)
+0.96
2 ClO, (ag) + 12 H* (aq) + 10 e
+1.47
-2.71
Cl2(g) + 6 H20(1)
- Ni(s)
-0.28
Co2+(aq) + 2 e Co(s)
Co+ (aq) + e Co2+(aq)
Cr*(aq) + 3 e"
Cr*(ag) + e
Cro,"(aq) + 14 H*(aq) + 6 e -
-0.277
2 H,O(1)
+1.23
+1.842
+0.40
H;O2(aq)
O,(g) + H,0()
- Cr(s)
-0.74
+0.68
Cr* (aq)
+2.07
-0.41
+1.33
-0.126
2 Cr* (aq) + 7 H,0(1)
+1.685
Cro,"(aq) + 4 H;O() + 3e -
PbSO,(s) + 2 H0(1)
Pb(s) + HSO, (aq)
-0.13
Cr(OH)3(s) + 5 OH (aq)
PbSO,(s) + H*(aq) + 2 e
PtCl (aq) + 2 e
S(s) + 2 H*(aq) + 2 e
H,SO3(ag) + 4 H*(aq) + 4 e - S(s) + 3 H2O(1)
HSO, (aq) + 3 H*(aq) + 2 e
-0.356
Cu?*(ag) + 2 e Cu(s)
Cu2* (ag) + e - Cu* (aq)
Cu*(aq) + e
Cul(s) + e
+0.337
Pt(s) + 4 CI (aq)
+0.73
+0.153
H,S(g)
+0.141
- Cu(s)
- Cu(s) + I (aq)
2 F(aq)
+0.521
+0.45
-0.185
+0.17
F2(g) + 2 e
Fe*(ag) + 2 e
Fe*(ag) + e →
Fe(CN), (aq) + e
2 H* (ag) + 2 e →
-
+2.87
H2SO3(aq) + H,0(1)
Sn²*(aq) + 2 e
Sn** (aq) + 2 e-→
VO," (ag) + 2 H*(aq) + e
Zn2+(aq) + 2 e
Fe(s)
-0.440
Sn(s)
--0.136
Fe2* (aq)
Fe(CN), (aq)
+0.771
Sn²* (aq)
+0.154
+0.36
vo* (ag) + H,O(1) +1.00
H;(g)
0.000
Zn(s)
-0.763
Transcribed Image Text:Half-Reaction E"(V) Half-Reaction E(V) Ag *(aq) + e AgBr(s) + e AgCI(s) + e Ag(CN), (aq) + e¯ Ag,CrO,(s) + 2 e AgI(s) + e - Ag(s) Ag(s) + Br (ag) Ag(s) + CI"(ag) 2 H,0(1) + 2 e HO, (ag) + H,0(1) + 2 e - 3 OH (ag) H,O,(aq) + 2 H*(aq) + 2 e - Hg,2* (ag) + 2 e- 2 Hg* (aq) + 2 e Hg**(aq) + 2 e I(s) + 2 e +0.799 H2(g) + 2 OH (aq) - -0.83 +0.095 +0.88 > +0.222 2 H;O(1) +1.776 Ag(s) + 2 CN (aq) -0.31 2 Hg(1) Hg,2+ (aq) Hg() 21 (aq) -> +0.789 2 Ag(s) + Cro, (ag) - +0.446 w +0.920 Ag(s) + 1(aq) Ag(S,O3)2 (aq) + e → Al* (ag) vt 3 e Al(s) H3ASO4(aq) + 2 H* (ag) + 2 e - -0.151 +0.854 Ag(s) + 2 S,0,"(aq) +0.01 +0.536 -1.66 2 10; (aq) + 12 H*(aq) + 10 e +1.195 +0.559 12(s) + 6 H2O() H3ASO;(ag) + H,0(1) K*(aq) + e Li*(ag) + e Mg?*(ag) + 2 e- Mn2+ (aq) + 2 e“ K(s) Ba2+ (aq) + 2 e Bio* (aq) + 2 H* (aq) + 3 e- Br2(1) + 2 e - 2 Br (aq) 2 Bro; (ag) + 12 H*(aq) + 10 e - -2.925 Ba(s) -2.90 Bi(s) + H2O(1) Li(s) -3.05 +0.32 +1.065 Mg(s) -2.37 +1.52 » Mn(s) -1.18 MnO;(s) + 4 H*(aq) + 2 e- Brz(1) + 6 H2O(1) H2C,O4(ag) +1.23 > Mn*(aq) + 2 H;0() 2 CO:(g) + 2 H* (aq) + 2e → Ca2+ (aq) + 2 e Cd2+(aq) + 2 e Ce*+(aq) + e → Cl(g) + 2 e" - 2 CI (ag) 2 HCIO(ag) + 2 н*(аq) + 2 е -0.49 MnO4 (aq) + 8 H* (aq) + 5 e --→ Ca(s) Cd(s) Ce* (aq) - -2.87 +1.51 Mn?*(ag) + 4 H;O() -0.403 Mno, (ag) + 2 H,O(1) + 3 e +0.59 +1.61 MnO2(s) + 4 OH"(aq) +1.359 HNO,(aq) + H* (aq) + e" N2(g) + 4 H20(!) + 4e NO(g) + H2O(1) 4 OH (aq) + N,H4(aq) N,H3*(aq) +1.63 +1.00 Cl2(g) + 2 H2O(I) -1.16 CIO (aq) + H,O(1) + 2 e N2(g) + 5 H* (ag) + 4 e NO, (aq) + 4 H* (aq) + 3 e --→ NO(g) + 2 H,O() Na* (ag) + e – Na(s) Ni?* (aq) + 2 e Oz(g) + 4 H*(aq) + 4e Oz(g) + 2 H;O(I) + 4 e 4 OH (aq) O,(g) + 2 H* (ag) + 2e O3lg) + 2 H*(aq) + 2 e Pb* (aq) + 2 e Pb(s) PbO2(s) + HSO, (aq) + 3 H*(aq) + 2 e +0.89 -0.23 CI (ag) + 2 OH (aq) +0.96 2 ClO, (ag) + 12 H* (aq) + 10 e +1.47 -2.71 Cl2(g) + 6 H20(1) - Ni(s) -0.28 Co2+(aq) + 2 e Co(s) Co+ (aq) + e Co2+(aq) Cr*(aq) + 3 e" Cr*(ag) + e Cro,"(aq) + 14 H*(aq) + 6 e - -0.277 2 H,O(1) +1.23 +1.842 +0.40 H;O2(aq) O,(g) + H,0() - Cr(s) -0.74 +0.68 Cr* (aq) +2.07 -0.41 +1.33 -0.126 2 Cr* (aq) + 7 H,0(1) +1.685 Cro,"(aq) + 4 H;O() + 3e - PbSO,(s) + 2 H0(1) Pb(s) + HSO, (aq) -0.13 Cr(OH)3(s) + 5 OH (aq) PbSO,(s) + H*(aq) + 2 e PtCl (aq) + 2 e S(s) + 2 H*(aq) + 2 e H,SO3(ag) + 4 H*(aq) + 4 e - S(s) + 3 H2O(1) HSO, (aq) + 3 H*(aq) + 2 e -0.356 Cu?*(ag) + 2 e Cu(s) Cu2* (ag) + e - Cu* (aq) Cu*(aq) + e Cul(s) + e +0.337 Pt(s) + 4 CI (aq) +0.73 +0.153 H,S(g) +0.141 - Cu(s) - Cu(s) + I (aq) 2 F(aq) +0.521 +0.45 -0.185 +0.17 F2(g) + 2 e Fe*(ag) + 2 e Fe*(ag) + e → Fe(CN), (aq) + e 2 H* (ag) + 2 e → - +2.87 H2SO3(aq) + H,0(1) Sn²*(aq) + 2 e Sn** (aq) + 2 e-→ VO," (ag) + 2 H*(aq) + e Zn2+(aq) + 2 e Fe(s) -0.440 Sn(s) --0.136 Fe2* (aq) Fe(CN), (aq) +0.771 Sn²* (aq) +0.154 +0.36 vo* (ag) + H,O(1) +1.00 H;(g) 0.000 Zn(s) -0.763
4. *For the unbalanced reaction Fe3+(aq) +I-(aq) → Fe²*(aq) + I2(s)
а.
Balance the reaction and label the oxidation and reduction half reactions.
b. Identify the anode and cathode
c. What is the oxidizing agent? The reducing agent?
d. Using the table of standard reduction potentials, calculate E° for this cell.
Transcribed Image Text:4. *For the unbalanced reaction Fe3+(aq) +I-(aq) → Fe²*(aq) + I2(s) а. Balance the reaction and label the oxidation and reduction half reactions. b. Identify the anode and cathode c. What is the oxidizing agent? The reducing agent? d. Using the table of standard reduction potentials, calculate E° for this cell.
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