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Atomic Number and Mass Number

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Question

Calculate the current (in mA) required to deposit 0.195g of platinum metal in 5 hours from a solution of [PtCl₆]^2- : (Atomic mass of Pt = 195)

(a) 310 (b) 31 (c) 21.44 (d) 5.36

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Answer isd) 5.36mA

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