1. A disproportionation reaction is a specific type of redox reaction in which an element from a reaction undergoes both oxidation and reduction to form two different products. The disproportionation reaction shown below occurs in basic solution. Balance this reaction using the half-reaction method. CIO2 → ClO, + CIO; 2. Write the half reactions for the anode and the cathode as well as the overall cell reaction in the following galvanic cells. Then, calculate E"cell using the tabulated values of standard reduction potentials. Co(s) | Co² (aq) || Cu²*(aq) | Cu(s) Pb(s) | Pb²*(aq) || NO3 (aq), H*(aq), NO(g) | Pt(s) TABLE 20.1 Standard Electrode Potentials at 25 °C Reduction Half-Reaction E(V) Flgl + 2e 2F lag) 2.87 Stronger caidiring agent HOlagi + 2 H'lag) + 2e Weaker reducing agent 178 PhSo,(a 2 HOU) Mno,la- 2 Hou) Mr"(ag +4 H,OU - Aulal PbO,la + 4H"(agl + so"lagl + 2e 169 Mno, (ag + 4 H'lagl + 3e 168 Mno,"(agl + 8Hr(agl + 5e 151 Au"lagl + 3e 150 - Pt"(a+ 2 H,O - 20lag) Pbo,ls) + 4H"(agl + 20 146 Chlg+ 2 Crolagi + 14 H*lagi + 6e Oglgl + 4H'lagl +4e MnDla) + 4H"(ag+ 20 10, lagl+6H'lagl + 5e Bryn + 2e vo,lag) + 2 H"(ag +e 136 20agl + 7 H01n - 2 H,OUI - Mr"(ag + 2 H,OUI blagi + 3 HOn - 2 Brlag 133 123 121 1.20 109 vo"lagl + H,Un 100 NO, lag + 4H'lagl +3e NOlgl + 2 H,OIn 0.96 CIO,a +e Ag'lag) + CIO, lag 0.95 Aglal 0.80 Felag+e Fe"lag 0.77 Olgi + 2H(agl + 2 Mno, (ag +e H,O,lagi 0.70 Mno"lagi 0.56 bla + 2e Cu*lagl +e 0.54 Culs) 0.52 Olg + 2 H,01/ + 4e 4 OH (agl 0.40 Cư"lag) + 2e - Culs) 0.34 so lagl + 4 H'lagl+2e H,SOagl + Ho) 0.20 Cư"lag) e - Cu'lag 0.16 Sn"lag) + 2 e Sn"lag) 0.15 Hylal - Fels) 2H"lagl + 2e Fe*lag) + 3e" -0.036 Pt"(agl + 2e Sr"lag) + 2e NPlag+ 2 Pbl와 -0.13 Snlal -0.14 - Nie -0.23 Cdlagl 2e - Cdia) 0.40 Felag)- 2e - Felai 0.45 Crlag)+e - Clagi 0.50 Clag) + 3e Cris 0.73 Zr"(agl + 2e 2 HO 2 Znla 0.76 Hylal + 2 OH lagi - Mnla Mr"(a+ 2e -L18 AP lagl + 3e - Alla -166 Mg"(ag+2e - Mgls -237 -2.71 Nalal - Cals C lagl+2e -2.76 Be lagl +2e - Bale -2.90 Weaker caidiring agent Stronger reducing agent K'(ag +e Kisi -2.92 Llag) +e Lila -3.04
1. A disproportionation reaction is a specific type of redox reaction in which an element from a reaction undergoes both oxidation and reduction to form two different products. The disproportionation reaction shown below occurs in basic solution. Balance this reaction using the half-reaction method. CIO2 → ClO, + CIO; 2. Write the half reactions for the anode and the cathode as well as the overall cell reaction in the following galvanic cells. Then, calculate E"cell using the tabulated values of standard reduction potentials. Co(s) | Co² (aq) || Cu²*(aq) | Cu(s) Pb(s) | Pb²*(aq) || NO3 (aq), H*(aq), NO(g) | Pt(s) TABLE 20.1 Standard Electrode Potentials at 25 °C Reduction Half-Reaction E(V) Flgl + 2e 2F lag) 2.87 Stronger caidiring agent HOlagi + 2 H'lag) + 2e Weaker reducing agent 178 PhSo,(a 2 HOU) Mno,la- 2 Hou) Mr"(ag +4 H,OU - Aulal PbO,la + 4H"(agl + so"lagl + 2e 169 Mno, (ag + 4 H'lagl + 3e 168 Mno,"(agl + 8Hr(agl + 5e 151 Au"lagl + 3e 150 - Pt"(a+ 2 H,O - 20lag) Pbo,ls) + 4H"(agl + 20 146 Chlg+ 2 Crolagi + 14 H*lagi + 6e Oglgl + 4H'lagl +4e MnDla) + 4H"(ag+ 20 10, lagl+6H'lagl + 5e Bryn + 2e vo,lag) + 2 H"(ag +e 136 20agl + 7 H01n - 2 H,OUI - Mr"(ag + 2 H,OUI blagi + 3 HOn - 2 Brlag 133 123 121 1.20 109 vo"lagl + H,Un 100 NO, lag + 4H'lagl +3e NOlgl + 2 H,OIn 0.96 CIO,a +e Ag'lag) + CIO, lag 0.95 Aglal 0.80 Felag+e Fe"lag 0.77 Olgi + 2H(agl + 2 Mno, (ag +e H,O,lagi 0.70 Mno"lagi 0.56 bla + 2e Cu*lagl +e 0.54 Culs) 0.52 Olg + 2 H,01/ + 4e 4 OH (agl 0.40 Cư"lag) + 2e - Culs) 0.34 so lagl + 4 H'lagl+2e H,SOagl + Ho) 0.20 Cư"lag) e - Cu'lag 0.16 Sn"lag) + 2 e Sn"lag) 0.15 Hylal - Fels) 2H"lagl + 2e Fe*lag) + 3e" -0.036 Pt"(agl + 2e Sr"lag) + 2e NPlag+ 2 Pbl와 -0.13 Snlal -0.14 - Nie -0.23 Cdlagl 2e - Cdia) 0.40 Felag)- 2e - Felai 0.45 Crlag)+e - Clagi 0.50 Clag) + 3e Cris 0.73 Zr"(agl + 2e 2 HO 2 Znla 0.76 Hylal + 2 OH lagi - Mnla Mr"(a+ 2e -L18 AP lagl + 3e - Alla -166 Mg"(ag+2e - Mgls -237 -2.71 Nalal - Cals C lagl+2e -2.76 Be lagl +2e - Bale -2.90 Weaker caidiring agent Stronger reducing agent K'(ag +e Kisi -2.92 Llag) +e Lila -3.04
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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Transcribed Image Text:1. A disproportionation reaction is a specific type of redox reaction in which an element from a reaction undergoes both
oxidation and reduction to form two different products. The disproportionation reaction shown below occurs in basic
solution. Balance this reaction using the half-reaction method.
CIO2 → ClO, + CIO;
2. Write the half reactions for the anode and the cathode as well as the overall cell reaction in the following galvanic cells.
Then, calculate E"cell using the tabulated values of standard reduction potentials.
Co(s) | Co² (aq) || Cu²*(aq) | Cu(s)
Pb(s) | Pb²*(aq) || NO3 (aq), H*(aq), NO(g) | Pt(s)
Transcribed Image Text:TABLE 20.1 Standard Electrode Potentials at 25 °C
Reduction Half-Reaction
E(V)
Flgl + 2e
2F lag)
2.87
Stronger
caidiring agent HOlagi + 2 H'lag) + 2e
Weaker
reducing agent
178
PhSo,(a 2 HOU)
Mno,la- 2 Hou)
Mr"(ag +4 H,OU
- Aulal
PbO,la + 4H"(agl + so"lagl + 2e
169
Mno, (ag + 4 H'lagl + 3e
168
Mno,"(agl + 8Hr(agl + 5e
151
Au"lagl + 3e
150
- Pt"(a+ 2 H,O
- 20lag)
Pbo,ls) + 4H"(agl + 20
146
Chlg+ 2
Crolagi + 14 H*lagi + 6e
Oglgl + 4H'lagl +4e
MnDla) + 4H"(ag+ 20
10, lagl+6H'lagl + 5e
Bryn + 2e
vo,lag) + 2 H"(ag +e
136
20agl + 7 H01n
- 2 H,OUI
- Mr"(ag + 2 H,OUI
blagi + 3 HOn
- 2 Brlag
133
123
121
1.20
109
vo"lagl + H,Un
100
NO, lag + 4H'lagl +3e
NOlgl + 2 H,OIn
0.96
CIO,a +e
Ag'lag) +
CIO, lag
0.95
Aglal
0.80
Felag+e
Fe"lag
0.77
Olgi + 2H(agl + 2
Mno, (ag +e
H,O,lagi
0.70
Mno"lagi
0.56
bla + 2e
Cu*lagl +e
0.54
Culs)
0.52
Olg + 2 H,01/ + 4e
4 OH (agl
0.40
Cư"lag) + 2e
- Culs)
0.34
so lagl + 4 H'lagl+2e
H,SOagl + Ho)
0.20
Cư"lag) e
- Cu'lag
0.16
Sn"lag) + 2 e
Sn"lag)
0.15
Hylal
- Fels)
2H"lagl + 2e
Fe*lag) + 3e"
-0.036
Pt"(agl + 2e
Sr"lag) + 2e
NPlag+ 2
Pbl와
-0.13
Snlal
-0.14
- Nie
-0.23
Cdlagl 2e
- Cdia)
0.40
Felag)- 2e
- Felai
0.45
Crlag)+e
- Clagi
0.50
Clag) + 3e
Cris
0.73
Zr"(agl + 2e
2 HO 2
Znla
0.76
Hylal + 2 OH lagi
- Mnla
Mr"(a+ 2e
-L18
AP lagl + 3e
- Alla
-166
Mg"(ag+2e
- Mgls
-237
-2.71
Nalal
- Cals
C lagl+2e
-2.76
Be lagl +2e
- Bale
-2.90
Weaker
caidiring agent
Stronger
reducing agent
K'(ag +e
Kisi
-2.92
Llag) +e
Lila
-3.04
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