A Metal Object Is to Be Gold-Plated by an Electrolytic

question 40

Multiple Choice

A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl₃ electrolyte. Calculate the number of moles of gold deposited in 3.0 min by a constant current of 10.A.

• A) 6.2 * 10^-3 mol
• B) 9.3 * 10^-3 mol
• C) 1.8 * 10^-2 mol
• D) 3.5 * 10^-5 mol
• E) 160 mol

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