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Standard Reduction (Electrode) Potentials at 25 oC Half-Cell Reaction Eo (volts) Standard Reduction (Electrode) Potentials at...

Standard Reduction (Electrode) Potentials at 25 oC
Half-Cell Reaction Eo (volts)

Standard Reduction (Electrode) Potentials at 25 oC
Half-Cell Reaction Eo (volts)
F2(g) + 2 e- 2 F-(aq) 2.87
Ce4+(aq) + e- Ce3+(aq) 1.61
MnO4-(aq) + 8 H+(aq) + 5 e- Mn2+(aq) + 4 H2O(l) 1.51
Cl2(g) + 2 e- 2 Cl-(aq) 1.36
Cr2O72-(aq) + 14 H+(aq) + 6 e- 2 Cr3+(aq) + 7 H2O(l) 1.33
O2(g) + 4 H+(aq) + 4 e- 2 H2O(l) 1.229
Br2(l) + 2 e- 2 Br-(aq) 1.08
NO3-(aq) + 4 H+(aq) + 3 e- NO(g) + 2 H2O(l) 0.96
2 Hg2+(aq) + 2 e- Hg22+(aq) 0.920
Hg2+(aq) + 2 e- Hg(l) 0.855
Ag+(aq) + e- Ag(s) 0.799
Hg22+(aq) + 2 e- 2 Hg(l) 0.789
Fe3+(aq) + e- Fe2+(aq) 0.771
I2(s) + 2 e- 2 I-(aq) 0.535
Fe(CN)63-(aq) + e- Fe(CN)64-(aq) 0.48
Cu2+(aq) + 2 e- Cu(s) 0.337
Cu2+(aq) + e- Cu+(aq) 0.153
S(s) + 2 H+(aq) + 2 e- H2S(aq) 0.14
2 H+(aq) + 2 e- H2(g) 0.0000
Pb2+(aq) + 2 e- Pb(s) -0.126
Sn2+(aq) + 2 e- Sn(s) -0.14
Ni2+(aq) + 2 e- Ni(s) -0.25
Co2+(aq) + 2 e- Co(s) -0.28
Cd2+(aq) + 2 e- Cd(s) -0.403
Cr3+(aq) + e- Cr2+(aq) -0.41
Fe2+(aq) + 2 e- Fe(s) -0.44
Cr3+(aq) + 3 e- Cr(s) -0.74
Zn2+(aq) + 2 e- Zn(s) -0.763
2 H2O(l) + 2 e- H2(g) + 2 OH-(aq) -0.83
Mn2+(aq) + 2 e- Mn(s) -1.18
Al3+(aq) + 3 e- Al(s) -1.66
Mg2+(aq) + 2 e- Mg(s) -2.37
Na+(aq) + e- Na(s) -2.714
K+(aq) + e- K(s) -2.925
Li+(aq) + e- Li(s) -3.045

Use standard reduction potentials to calculate the standard free energy change in kJ for the reaction:

Cd2+(aq) + 2Cr2+(aq)Cd(s) + 2Cr3+(aq)


Answer:________ kJ

K for this reaction would be _________(greater or less) than one.

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