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DiazJ_Exp6 - Experiment 6 Redox Reactions in Voltaic Cells...

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Experiment 6: Redox Reactions in Voltaic Cells 10-12-11 Joel Diaz 10-20-11 Amber Tra Chemistry 1045L-25 Ryan Riskowski
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Purpose The purpose of the experiment is to demonstrate the concept of oxidation and reduction reactions by producing a reaction and generating electricity; this is done by creating a flow of electrons from one place to another. A voltmeter is used to measure the electricity generated. Procedure Four Styrofoam cups that were cut in half were obtained for the experiment. The middle cup was half filled with 0.5 M NH4NO3, while the other cups were half filled with Al(NO3)3, Cu(NO3)2, and Fe(NO3)3. Three filter papers were folded into a U-shape and used as a salt bridge. Iron, aluminum, and copper were obtained and sand paper was used to make them “shine”. A voltmeter was set to volts and both ends were attached to the metals and partially submerged into their matching solutions. The potential was then measured.
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