A 1.00 g sample of a silver-containing ore is dissolved in dilute nitric acid. The solution is neutr — Electrochemistry Chemistry Question
Question
A 1.00 g sample of a silver-containing ore is dissolved in dilute nitric acid. The solution is neutralized and then selectively electrolyzed to deposit the silver metal, requiring 670 s of 0.10 A current. What is the mass percentage of silver in the ore?
A.
2.5%
B.
3.0%
C.
3.7%
D.✓ Correct
7.5%
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