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Investigate one of the following factors which affect the amount of copper (Cu) plated on a cathode by electrolysis of copper sulphate (CuSO )
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Suhayl Mahomed SCIENCE. Investigate one of the following factors which affect the amount of copper (Cu) plated on a cathode by electrolysis of copper sulphate (CuSO ) AIM. To determine the amount of copper deposited onto a cathode from a copper sulphate solution as the current is increased and all the other variables are kept constant. VARIABLES.> Time> Current (one chosen)> Temperature> Concentration of copper sulphate> Volume of solution> Size of electrodes> Distance between electrodes> Surface of the electrodes HYPOTHESIS. I predict that increase in the current will result in a greater movement of copper metal between two electrodes in a copper sulphate solution. APPARATUS.> Beaker> Copper Sulphate Solution> Electrodes> Power Pack> Ammeter (measure current flow)> Connecting wire METHOD. I set up my investigation as shown below by connecting two electrodes to a power pack, one being positively charged and the other negatively charged. In my tests the electrodes remained in the solution for a constant time of...
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