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Selective Oxidation The standard reduction potential for the half-reaction Sn4+ + 2e- --> Sn2+ is +0.15...

Selective Oxidation

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, in your text. For a galvanic cell under standard conditions, which of the following cathodic half reactions would produce, at the anode, a spontaneous oxidation of Sn to Sn2+ but not Sn2+ to Sn4+. (Yes or No)

1. Sn4+ + 2e- --> Sn2+

2. PbSO4 + 2e- --> Pb + SO42-

3. Fe3+ + 3e- --> Fe

4. 2H+ + 2e- --> H2

5. 2H2O + 2e- --> H2 + 2OH-

6. Sn2+ + 2e- --> Sn

Solutions

Expert Solution

queen_honey_blossom answered 2 years ago
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