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Chem lab report 5 - Richard Hogan Jimmy Mouchon...

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Richard Hogan Jimmy Mouchon 10/24/07 Investigation of a Redox Reaction Christina Liuzzi Chm 102: Section 6
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Purpose of Experiment: The purpose of this experiment is to determine the mass percent of Iron in Hydrated Iron(II) Ammonium Sulfate. We will do this by using reacting the Hydrated Iron(II) Ammonium Sulfate with Potassium Permanganate in a redox reaction. We will then use titration to determine how much Permanganate is needed to react with our amount of Hydrated Iron(II) Ammonium Sulfate. Experimental Procedure: The first thing we did was write a balanced equation for the redox reaction. Then we placed our sample of Hydrated Iron(II) Ammonium Sulfate in a flask, to which we added sulfuric acid. We then added Permanganate to the mixture, until it turned a pale yellow color; at that point we put phosphoric acid in the mixture. After that we continued to add Permanganate until the mixture turned a pale pink color. We then recorded how much Permanganate we had added. Then we repeated the process two more times.
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