Electrolysis Investigation

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PHYSICS COURSEWORK.

Prediction.

Electrolysis is the method of using electricity to separate

two solutions. This works by passing electricity through the anode,

(the positive electrode,) through the solution and then back up the

cathode, the negative electrode. In this investigation we will be

using Sodium Chloride (commonly know as salt) to react. If the ions

are positively charged then they will be attracted to the cathode, the

negative electrode, and if they are negatively charged then they will

be attracted to the positive electrode, the anode. When we use the

Sodium Chloride then the sodium ions will be attracted to the negative

electrode and the chlorine ions will be attracted to the positive

electrode. If we increase the concentration then the reaction will

happen faster because there are more electrons and so the chance of a

reaction happening is increased.

The current is the flow of Ions in the electrolyte cell, so more Ions

means more current.

Variables.

{ [image001.gif] Material of the electrode.