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March 27, 2017

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what must be the current in amperes to plate out 7.437g of Al from am aqueous solution of Al3+ in 5.4x10^2 minutes?

  • gen chem - ,

    A x seconds = coulombs.
    It will take 96,485 coulombs to plate (26.98/3) g Al.
    Coulombs = 96,485 x (7.437 x 3/26.98) = ??
    Substitute into the first equation and solve for A. Time is 540 min x 60 s/min.

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