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Investigate the effect of the amount of sodium chloride, i.e. concentration gradient, in the aqueous solution on the electric current during electrolysis.
The first 200 words of this essay...
When an electric current passes through sodium chloride solution, chemical reactions take place at both cathode and anode. If one passes through sodium chloride solution, there will be passage of ions moving through this solution. This results in positively charged sodium ions, which have been dissolved into the solution, moving towards the cathode and deposited there. At the same time, negatively charged chloride ions will be moving towards the anode and discharged at the anode. This is called electrolysis.
Aim of experiment
My aim is to investigate the effect of the amount of sodium chloride, i.e. concentration gradient, in the aqueous solution on the electric current during electrolysis.
Key Factors/ variables that affect the results of the experiment
The experiment carried out aimed to monitor the current during electrolysis when the amount of sodium chloride was changed. To ensure a fair test, only one of the listed key variables is allowed to change at a time with the rest of the variables are kept constant."
This will give me an accurate set of results, which, I hope, enables me to make a decent conclusion. If we do not control
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