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WORKSHEET 1. Write your hypothesis about what will happen in this experiment: __________________________________________________________________________________ __________________________________________________________________________________ ______________________________________________________________________ 2. Start Time:__________________________ 3. End Time: __________________________ OPTIONAL Table 1. Determining the mass of copper plating. Initial mass of dime [g] Final mass of dime [g] Difference in mass [g] QUESTIONS Initial mass of penny [g] Final mass of penny [g] Difference in mass [g] 1. Was your hypothesis correct? If not, why do you think it was not? _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ 2. At the end of the experiment, the dime should be coated with copper. What are the possible sources of this coating? How could you determine which sources contributed to the coating, and how much? _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ 3. Calculate the final concentration of CuSO4 in the copper sulfate electrolyte solution. _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ 4. Why do you think copper wire is used for the wire assemblies? _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________PDF Image | Chemistry of Copper Electrolysis
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