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

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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