Calculate the quantity of electricity in coulombs required to liberate 10g of copper from a…

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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]

  • 32395.5
  • 30156.3 checkmark
  • 60784.5
  • 15196.5

The correct answer is: B

Explanation

Cu → Cu2++ 2e
64g Cu requires 2 x 96500 coloumbs 10g Cu requires x columbs
x = 10x2x96500/64 =30156.3

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