Chemistry
JAMB 2014
Calculate the quantity of electricity in coulombs required to liberate 10g of copper from a copper compound
[Cu=64, F = 96500 Cmol
-1]
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A.
32395.5
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B.
30156.3
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C.
60784.5
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D.
15196.5
Correct Answer: Option B
Explanation
Cu → Cu
2++ 2e
64g Cu requires 2 x 96500 coloumbs 10g Cu requires x columbs
x = 10x2x96500/64 =30156.3
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