a solution of MgSO4 is electrolysed for 20 min. with a current of 1.5A. what mass of Mg is deposited at cathode?

According to Faraday's I law,

W = ZIt WhereW - Mass of magnesium depositedZ - electrochemical equivalence = atomic massnF     = 242 × 96500I = 1.5 At = 20 minW = 242 × 96500 × 1.5 × 20  = 0.00373 g

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