Suppose that gold is being plated on to another metal in an electrolytic cell. The half-cell reaction producing the Au ( s ) is AuCl ₄ ⁻ Au (s)+4 Cl ⁻-3 e⁻ If a 0.30 A current runs for 15.00 min , what mass of Au (s) will be plated, assumin

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Suppose that gold is being plated on to another metal in an electrolytic cell. The half-cell reaction producing the Au ( s ) is AuCl ₄ ⁻ Au (s)+4 Cl ⁻-3 e⁻ If a 0.30 A current runs for 15.00 min , what mass of Au (s) will be plated, assuming all the electrons are used in the reduction of AuCl ₄⁻ ? The Faraday constant is 96485 C / mol and molar mass of Au is 197 .

Quantrex Academy · Accepted Answer

Correct answer: A. 0.184 g Au

aligned & Mass of Au deposited = Number of Faraday passed Eq. mass & = 0.30 15 60 96485 197 3 =0.184 ~g aligned

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