The standard reduction potential for the half-reaction: Sn4+ + 2e- --> Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions attached below For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. write yes or no beside each one. Sn2+ Sn4+ + 2e- H2 + 2OH- 2H2O + 2e- 2H- H2 + 2e- H2 2H+ + 2e- Sn Sn2+ + 2e- Pb + SO42- PbSO4 + 2e-
The standard reduction potential for the half-reaction: Sn4+ + 2e- --> Sn2+ is +0.15 V. Consider data from the table of standard reduction potentials for common half-reactions attached below For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. write yes or no beside each one. Sn2+ Sn4+ + 2e- H2 + 2OH- 2H2O + 2e- 2H- H2 + 2e- H2 2H+ + 2e- Sn Sn2+ + 2e- Pb + SO42- PbSO4 + 2e-
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Hello i am still having difficulty with this question. handwritten solutions are more prefered than typed. i tried yes, no, no, no, yes, no but it was wrong.
The standard reduction potential for the half-reaction:
Sn4+ + 2e- --> Sn2+ |
is +0.15 V.
Consider data from the table of standard reduction potentials for common half-reactions attached below
For a galvanic cell under standard conditions, which of the following anodic half reactions would produce, at the cathode a spontaneous reduction of Sn4+ to Sn2+ but not Sn2+ to Sn. write yes or no beside each one.
Sn2+ Sn4+ + 2e-
H2 + 2OH- 2H2O + 2e-
2H- H2 + 2e-
H2 2H+ + 2e-
Sn Sn2+ + 2e-
Pb + SO42- PbSO4 + 2e-

Transcribed Image Text:Standard Reduction Potentials at 25°C (298 K) for Many Common Half-reactions
Half-reaction
%° (V)
Half-reaction
F₂ +2e7 →2F-
Ag²+ + e → Ag+
Co³+ + e→→ Co²+
H₂O₂ + 2H+ + 2e7 → 2H₂O
Ce4+ + e→Ce³+
PbO₂ + 4H+ + SO4² +2e →→ PbSO4 + 2H₂O
MnO4 + 4H+ + 3e7 → MnO₂ + 2H₂O
IO4 + 2H+ + 2e → IO3 + H₂O
MnO4 + 8H+ + 5e → Mn²+ + 4H₂O
Au³+ + 3e7 → Au
PbO₂ + 4H+ + 2e¯ → Pb²+ + 2H₂O
Cl₂ +2e2C1-
Cr₂O2 + 14H+ + 6e¯ → 2Cr³+ + 7H₂O
O₂ + 4H+ + 4e → 2H₂O
MnO₂ + 4H+ + 2e
IO3 + 6H+ + 5e-
Br₂ +2e7 → 2Br
→ Mn²+ + 2H₂O
1₂+ 3H₂O
VO₂+ + 2H+ + e → VO²+ + H₂O
AuCl4 + 3e → Au + 4Cl-
NO3 + 4H+ + 3e → NO + 2H₂O
CIO₂ + e→→ CIO₂
2Hg2+ + 2c7 → Hg₂²+
Ag+ + e → Ag
Hg₂+ + 2e →→ 2Hg
Fe³+ + e Fe2+
O₂ + 2H+ + 2e → H₂O₂
MnO4 + e→→ MnO4²-
21-
1₂ +2e
Cut + e → Cu
2.87
1.99
1.82
1.78
1.70
1.69
1.68
1.60
1.51
1.50
1.46
1.36
1.33
1.23
1.21
1.20
1.09
1.00
0.99
0.96
0.954
0.91
0.80
0.80
0.77
0.68
0.56
0.54
0.52
O₂ + 2H₂O + 4c→ 40H
Cu²+ + 2e →→ Cu
Hg₂Cl₂ + 2e →→ 2Hg + 2Cl-
AgCleAg + Cl-
SO4²- + 4H+ + 2e¯ → H₂SO3 + H₂O
Cu²+ + e→ Cu+
2H+ + 2e7 → H₂
→→ Fe
→→ Pb
→ Sn
→ Ni
Fe³+ + 3e
Pb²+ + 2e
Sn²+ + 2e7
Ni²+ + 2e7
→→ Pb + SO4²-
PbSO4 + 2e
Cr³+ + e→→
Cd²+ + 2e7
→ Cd
Fe2+ + 2e7 → Fe
Cr²+
→ Cr
→ Zn
Cr3+ + 3e-
Zn²+ + 2e7
2H₂O + 2e
→ H₂ + 2OH-
Mn²+ + 2e7 → Mn
Al³+ + 3e → Al
H₂ +2e7 → 2H-
Mg2+ + 2c→→ Mg
La³+ + 3e7 → La
Na+ + e- → Na
Ca²+ + 2e7 → Ca
Ba2+ + 2e7 → Ba
K+ + e→→ K
Lite Li
8° (V)
0.40
0.34
0.27
0.22
0.20
0.16
0.00
-0.036
-0.13
-0.14
-0.23
-0.35
-0.40
-0.44
-0.50
-0.73
-0.76
-0.83
-1.18
-1.66
- 2.23
-2.37
-2.37
-2.71
-2.76
-2.90
-2.92
-3.05
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