Gold (atomic mass = 197.0) is plated from a solution of chloroauric acid,HAuCl4;it deposits on the cathode.Calculate the time it takes to deposit 0.30 gram of gold,passing a current of 0.10 amperes.(1 faraday = 96,485 coulombs)
A) 12 hours
B) 1.2 hours
C) 24 minutes
D) 8.2 minutes
E) none of these
Correct Answer:
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