Using the standard reduction potentials in Table 8-1, place these elements in order of increasing ability to function as reducing agents: a) Cl, b) Fe c) Ag d) Na e) H2

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Table 8-1
Standard Reduction Potentials in Aqueous Solution at 25°C"
Reduction Half Reaction
Oxidizing Agents
Reducing Agents
+2.87
F2(g) + 2 e
H,O, (aq) + 2 H;0*(aq) + 2 e
PbO,(s) + SO (aq) + 4 H,O* (aq) + 2 e
-0.78 V
2F (aq)
4 H,0 (()
+1.763
+1.690
PbSO,(s) + 6 H,O(€)
Au (aq) + 3 e
Au (s)
+1.52
MnO, (aq) + 8 H,0 (aq) + 5 e
Mn2 (aq) + 12 H,0 (()
+1.51
Cr,0; (aq) + 14 H30*(aq) + 6 e
2 Cr*(aq) +21 H,0()
+1.36
ones
8-1.
Cl,(g) + 2 e
+1.358
2 CI (aq)
6 H,0 ()
2 Br (aq)
rause
0,g) + 4 H,0 (aq) + 4 e
+1.229
hich
ogen
dard
Br, (() + 2 e
+1.066
NO (aq) + 4 H;0*(aq) + 3 e
NO (g) + 6 H,0 ()
+0.96
- we
OCI (aq) + H,0(e) + 2 e
CI (aq) + 2 OH (aq)
Hg ()
+0.89
Hg (aq) + 2 e
+0.8535
Ag (aq) + e
Ag(s)
+0.7991
Hg (aq) + 2 e
Fe* (aq) + e
2 Hg (e)
Fe (aq)
+0.7960
V
+0.771
(s) + 2 e
21 (aq)
+0.535
0,(g) + 2 H,0 (€) + 4 e
+4 OH (aq)
+0.401
es
Cu²t (aq) + 2 e
Cu (s)
+0.340
e
Sn+(aq) + 2 e
Sn2+ (aq)
+0.15
2 H;0*(aq) + 2 e
→H,(g) + 2 H,0 (e)
Sn (s)
Sn²* (aq) + 2 e
0.1375
Ni2+ (aq) + 2 e
Ni (s)
0.25
PbSO, (s) + 2 e
Pb(s) +SO (aq)
-0.3505
Cd²+(aq) + 2 e
Cd (s)
-0.403
Fe?+ (aq) + 2 e
Fe (s)
-0.44
Zn* (aq) + 2 e
Zn (s)
-0.763
2 H,0 (() + 2 e
H2(g) + 2 OH (aq)
Al (s)
0.8277
Al+(aq) + 3 e
-1.676
Mg+ (aq) + 2 e
Mg (s)
-2.356
Na (aq) + e
Na (s)
-2.714
K* (aq) + e
K(s)
-2.925
Li* (aq) + e
Li(s)
-3.045
Data from Bard, A. J., Parsons, R., and Jordan, J. Standard Potentials in Aqueous Solution. New York: Marcel
Dekker: 1985. International Union of Pure and Applied Chemistry Commission on Electrochemistry and
Electroanalytical Chemistry.
*In volts (V) versus the standard hydrogen electrode.
Transcribed Image Text:Table 8-1 Standard Reduction Potentials in Aqueous Solution at 25°C" Reduction Half Reaction Oxidizing Agents Reducing Agents +2.87 F2(g) + 2 e H,O, (aq) + 2 H;0*(aq) + 2 e PbO,(s) + SO (aq) + 4 H,O* (aq) + 2 e -0.78 V 2F (aq) 4 H,0 (() +1.763 +1.690 PbSO,(s) + 6 H,O(€) Au (aq) + 3 e Au (s) +1.52 MnO, (aq) + 8 H,0 (aq) + 5 e Mn2 (aq) + 12 H,0 (() +1.51 Cr,0; (aq) + 14 H30*(aq) + 6 e 2 Cr*(aq) +21 H,0() +1.36 ones 8-1. Cl,(g) + 2 e +1.358 2 CI (aq) 6 H,0 () 2 Br (aq) rause 0,g) + 4 H,0 (aq) + 4 e +1.229 hich ogen dard Br, (() + 2 e +1.066 NO (aq) + 4 H;0*(aq) + 3 e NO (g) + 6 H,0 () +0.96 - we OCI (aq) + H,0(e) + 2 e CI (aq) + 2 OH (aq) Hg () +0.89 Hg (aq) + 2 e +0.8535 Ag (aq) + e Ag(s) +0.7991 Hg (aq) + 2 e Fe* (aq) + e 2 Hg (e) Fe (aq) +0.7960 V +0.771 (s) + 2 e 21 (aq) +0.535 0,(g) + 2 H,0 (€) + 4 e +4 OH (aq) +0.401 es Cu²t (aq) + 2 e Cu (s) +0.340 e Sn+(aq) + 2 e Sn2+ (aq) +0.15 2 H;0*(aq) + 2 e →H,(g) + 2 H,0 (e) Sn (s) Sn²* (aq) + 2 e 0.1375 Ni2+ (aq) + 2 e Ni (s) 0.25 PbSO, (s) + 2 e Pb(s) +SO (aq) -0.3505 Cd²+(aq) + 2 e Cd (s) -0.403 Fe?+ (aq) + 2 e Fe (s) -0.44 Zn* (aq) + 2 e Zn (s) -0.763 2 H,0 (() + 2 e H2(g) + 2 OH (aq) Al (s) 0.8277 Al+(aq) + 3 e -1.676 Mg+ (aq) + 2 e Mg (s) -2.356 Na (aq) + e Na (s) -2.714 K* (aq) + e K(s) -2.925 Li* (aq) + e Li(s) -3.045 Data from Bard, A. J., Parsons, R., and Jordan, J. Standard Potentials in Aqueous Solution. New York: Marcel Dekker: 1985. International Union of Pure and Applied Chemistry Commission on Electrochemistry and Electroanalytical Chemistry. *In volts (V) versus the standard hydrogen electrode.
10. Using the standard reduction potentials in Table 8-1, place these elements in order of increasing ability to function as
reducing agents:
a) Cl2
b) Fe
c) Ag
d) Na
e) H2
Transcribed Image Text:10. Using the standard reduction potentials in Table 8-1, place these elements in order of increasing ability to function as reducing agents: a) Cl2 b) Fe c) Ag d) Na e) H2
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