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4 July, 06:06

How many grams of nickel metal are plated out when a constant current of 15.0 Ais passed through aqueous NICl2 for 80.0 minutes?

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  1. 4 July, 07:46
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    21.89 g

    Explanation:

    i = 15 A

    time = 80 minutes = 80 x 60 = 4800 second

    Electro chemical equivalent of nickel, Z = 0.000304 gram per ampere second

    Use the Faraday's law of electrolysis

    m = z i t

    where, m is the mass deposited, i be the current, z be the electro chemical equivalent and t be the time taken

    m = 0.000304 x 15 x 4800

    m = 21.89 g

    Thus, the mass f nickel deposited is 21.89 g.
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