Given the reduction potentials below:
|
Reduction Half-Reaction |
E° (V) |
|
Reduction Half-Reaction |
E° (V) |
|
F2(g)+2e− → 2F−(aq) |
+2.87 |
|
Pb2+(aq)+2e− → Pb(s) |
-0.13 |
|
Cl2(l)+2e− → 2Cl− (aq) |
+1.36 |
|
Sn2+(aq)+2e− → Sn(s) |
-0.14 |
|
O2(g)+4H+(aq)+4e− → 2H2O(l) |
+1.23 |
|
Ni2+(aq)+2e− → Ni(s) |
-0.23 |
|
Br2(l)+2e− → 2Br−(aq) |
+1.09 |
|
V3+(aq)+e− → V2+(aq) |
-0.26 |
|
Ag+(aq)+e− → Ag(s) |
+0.80 |
|
Cd2+(aq)+2e− → Cd(s) |
-0.40 |
|
Fe3+(aq)+e− → Fe2+(aq) |
+0.77 |
|
Fe2+(aq)+2e− → Fe(s) |
-0.44 |
|
I2(l) + 2e− → 2I−(aq) |
+0.54 |
|
Cr3+(aq)+3e− → Cr(s) |
-0.74 |
|
Cu2+(aq)+2e− → Cu(s) |
+0.34 |
|
Zn2+(aq)+2e− → Zn(s) |
-0.76 |
|
Sn4+(aq)+2e− → Sn2+(aq) |
+0.15 |
|
Mn2+(aq)+2e− → Mn(s) |
-1.18 |
|
2H+(aq)+2e− → H2(g) |
0.00 |
|
Al3+(aq)+3e− → Al(s) |
-1.66 |
What is the value of the equilibrium constant, K, at 25 oC for the reaction between the pair:
Cr(s) and Fe2+(aq) to give Fe(s) and Cr3+(aq) ?
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