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How does concentration affect the rate of electrolysis of Copper Sulphate solution?
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| Submitted: Thu Jan 08 2004
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How does concentration affect the rate of electrolysis of Copper Sulphate solution? Aim: In order to find out what factors affect the rate of electrolysis, we will change the concentration of the solution to find out which produces the highest current. Background information: Electrolysis is defined as: "The breakdown of a chemical substance by electricity." The following is the formula for what happens during electrolysis of Copper Sulphate Solution: 2CuSO4 (AQ) + 2H2O (L) 2Cu (S) + O2 (G) + 2H2SO4 (AQ) Reaction in the solution Copper + Oxygen + Sulphuric Acid Variables: The following is a list of variables that could effect the experiment: Table 1 Variable: Effect: Controlled: The concentration of the solution This is expected to effect the results, and will be the focus of the experiment. This will be the variable for the experiment The voltage flowing through the circuit With a higher voltage, the cathode would produce more copper Yes, the voltage will always be kept the same (9 volts) The temperature of the solution If...
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