The aim of this experiment is to investigate the factors affecting Copper Plating and the work of Michael Faraday.

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An Investigation on Electrolysis

Contents:

An Investigation on Electrolysis

Aim:

The aim of this experiment is to investigate the factors affecting Copper Plating and the work of Michael Faraday.

Prediction:

I predict that during the experiment, the copper plating on the negative side will decrease by losing electrons in mass whilst, the copper plating on the cathode side will increase in mass by gaining electrons.

I predict that the mass of metal deposited will be directly proportional to the time and the current. I also therefore predict that if I double the time of the experiment, I will therefore be doubling the charge. This statement can be supported by both of Faraday’s Laws.

Faraday’s First Law of electrolysis states that:

“The mass of any element deposited during electrolysis is directly proportional to the number of coulombs of electricity passed” 

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Faraday’s Second Law of electrolysis states that:

“The mass of an element deposited by one Faraday of electricity is equal to the atomic mass in grams of the element divided by the number of electrons required to discharge one ion of the element.”

When the copper plating on the cathode side increases in mass, it is covered with a bright new coating of copper. We say that it has been electroplated with copper.

Apparatus:

     

  • Glass Beaker

  • Power Source

  • Wires

  • Ammeter

  • Stopwatch

  • 2 Copper Electrodes

  • 75 ml Copper Sulphate ...

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