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Electrochemistry

Question

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How many grams of silver could be placed out on a shild by electrolysis of a solution containing Λ° ions for a period of 4 hours by a current strength of 8.5 amperes? [F = 96,500 C mol^–1, Molar mass of Ag = 107.8 g]

Solution

Molar mass of silver 107.8g
Current = 8.5 A

{Ag}^{+} + e \to Ag (s)

m = Z \times I \times t = \frac{107.8}{96500} \times 8.5 amp \times 4 \times 60 \times 60 m = \frac{131947.2}{965} = 136.73 g .

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