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1 August, 10:25

What mass of copper is deposited when a current of 10.0a is passed through a solution of copper (ii) nitrate for 30.6 seconds?

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  1. 1 August, 11:06
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    Data Given:

    Time = t = 30.6 s

    Current = I = 10 A

    Faradays Constant = F = 96500

    Chemical equivalent = e = 63.54/2 = 31.77 g

    Amount Deposited = W = ?

    Solution:

    According to Faraday's Law,

    W = I t e / F

    Putting Values,

    W = (10 A * 30.6 s * 31.77 g) : 96500

    W = 0.100 g

    Result:

    0.100 g of Cu²⁺ is deposited.
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