Oxidation: Fe2+ → Fe3+ + e Reduction: Au3+ + 3 e¯ → Au Net: 3 Fe2+ + Au3+ → Au + 3 Fe3+ What is the standard potential, Eºnet ? Standard Reduction Potentials Reduction Half-Reaction E° (V) Co3++ e- + Co2+ 1.82 Au³++ 3e- + Au(s) 1.50 Pd2++2 e- + Pd 0.987 Ag*+ e- - Ag(s) 0.80 Fe3++ e- Fe2+ 0.771 + Cu(s) 0.52 + Cu(s) 0.337 Cu*+ e- Cu2++ 2 e- Cu2++ e- → Cu* 0.153 2H+ + 2 e- + H2(g) 0.00 Sn2++ 2 e- + Sn(s) -0.14 Co2++ 2 e- Co(s) -0.28 Cr++ e- + Cr+ -0.41 Fe2++ 2 e- + Fe(s) + Cr(s) -0.44 Cr++ 3 e- -0.74 Zn2++ 2 e- Zn(s) -0.763 Al3++ 3 e- + Al(s) -1.66
Oxidation: Fe2+ → Fe3+ + e Reduction: Au3+ + 3 e¯ → Au Net: 3 Fe2+ + Au3+ → Au + 3 Fe3+ What is the standard potential, Eºnet ? Standard Reduction Potentials Reduction Half-Reaction E° (V) Co3++ e- + Co2+ 1.82 Au³++ 3e- + Au(s) 1.50 Pd2++2 e- + Pd 0.987 Ag*+ e- - Ag(s) 0.80 Fe3++ e- Fe2+ 0.771 + Cu(s) 0.52 + Cu(s) 0.337 Cu*+ e- Cu2++ 2 e- Cu2++ e- → Cu* 0.153 2H+ + 2 e- + H2(g) 0.00 Sn2++ 2 e- + Sn(s) -0.14 Co2++ 2 e- Co(s) -0.28 Cr++ e- + Cr+ -0.41 Fe2++ 2 e- + Fe(s) + Cr(s) -0.44 Cr++ 3 e- -0.74 Zn2++ 2 e- Zn(s) -0.763 Al3++ 3 e- + Al(s) -1.66
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter17: Electrochemistry And Its Applications
Section17.4: Voltaic Cells And Cell Potential
Problem 17.4PSP: Given this reaction, its standard potential, and the standard half-cell potential of 0.34 V for the...
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Transcribed Image Text:Oxidation: Fe2+
Fe3+ + e
Reduction: Au3+ + 3 e¯ → Au
Net: 3 Fe2+ + Au3+
→ Au + 3 Fe3+
What is the standard potential, E°net ?
Standard Reduction Potentials
Reduction Half-Reaction E° (V)
Co3++ e-
+ Co2+
1.82
Au3++ 3e-
+ Au(s)
1.50
Pd2++2 e-
Pd
0.987
Ag++ e-
+ Ag(s)
0.80
Fe++ e-
Fe2+
0.771
Cu*+ e-
+ Cu(s)
0.52
Cu2++ 2 e-
Cu(s) 0.337
Cu2++ e-
Cut
0.153
2 H+ + 2 e-
- H2(g)
0.00
Sn2++ 2 e-
→ Sn(s)
-0.14
Co2++ 2 e-
Co(s) -0.28
Cr*++ e-
Cr+
-0.41
Fe2++ 2 e-
+ Fe(s)
-0.44
Cr++ 3 e-
+ Cr(s)
-0.74
Zn2++ 2 e-
Zn(s) -0.763
Al3++ 3 e-
+ Al(s)
-1.66
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