Electrolysis of Sodium Chloride

Aim: To find out how the exchange of NaCl will affect the current.

Preliminary Test: To make sure we understand how the experiment is going to work,

we need to carry out an initial test. This will enable us to go through

the experiment and note the ways in which we can keep it a fair test.

Preliminary results are roughly direct, they may double roughly to

to the actual results due to human error etc.

Through doing this initial test we found that we can’t use too much

salt because it will be saturated (wont dissolve) and the current

wont change, giving inaccurate results.

Prediction: I predict that the more NaCl added to H2O the higher the current will be.

I predict this because the more surface area and the more concentration

would make more reactions, which would speed up the reaction and create

• Electrolysis is the decomposition of a compound using electricity.

• Electricity is the flow of electrons or charged particles known as IONS.

• When a salt (NaCl) is dissolved in water its ions are free to move.

At the Cathode: The ions present here are Na+ and H+. The most reactive ion is going

Some topics in this essay:
Analysis Looking, Preliminary Test, Fair Test, Mass NaCl, Cl2 OXIDATION, Na+ H+, Halogen Halogen, NaCl Aim, H2 REDUCTION, sodium chloride, H+ Cathode, human error, fair test, test amps, sodium chloride nacl, initial test, power pack, cl- oh-, oh- ions, 040 040, 036 036,