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22 July, 13:00

How much time is required to plate out 20.0 g of Zn from a solution containing Zn2 + ions, using a current of 2.00 amperes?

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  1. 22 July, 15:37
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    Answer: 494.872mins

    Explanation:

    M = MrIt:n

    M=20g

    Mr=65g/mol

    I=2A

    1 farad = 96500

    For zinc with 2ions

    2*96500 = 193000

    M*n = MrIt

    T = M*n:MrI

    t = 20*193000/2*65

    t = 3860000/130

    t = 29692.307sec

    t=29692.307/60

    t = 494.872 mins
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