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Gold Can Be Electrochemically "Plated" onto a Less Expensive Metal \rarr

Question 80

Multiple Choice

Gold can be electrochemically "plated" onto a less expensive metal by submerging the object in a solution of gold(III) and applying an electric current to drive the following half-reaction: Au3+ + 3e- \rarr Au(s)
How many grams of gold will be formed if a current of 2.37 A is applied for 71 minutes


A) 7.3 g
B) 7.1 g
C) 6.9 g
D) 6.7 g
E) None of the above

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