Discussion
The charge needed to deposit 108 g of silver is
Answer: C
Correct answer: 96 500 C
Silver is univalent, so its equivalent mass equals its atomic mass of 108, and 108 g is therefore exactly one gram equivalent. One gram equivalent requires one faraday, which is 96,500 coulombs. This is the classical silver coulometer, and it is how the faraday was originally determined.
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