May '13
15
MCAT Question of the Day | MCAT Course


  • Q:

    When an electrode of Au(s) is placed into a solution of PbSO4, no precipitate of Pb forms on the surface of the electrode. Which of the following can be concluded from this information?

     

    A

    The reaction Au + Pb2+ → Au+ + Pb is spontaneous

    B

    The E of the reaction setup is negative

    C

    An increase in the PbSO4 would cause Pb2+ to plate onto the electrode

    D

    Reversal of the setup with a solid Pb electrode and aqueous Au would not have Au precipitate onto Pb




    Tags: Thermochemistry | Suggest a tag
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