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 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 having difficulty  with this question. i tried no, no, no, no, yes, no but it is not correct. 

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 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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