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Experiment 7 - Experiment 7 Oxidation-Reduction Reactions...

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Experiment 7: Oxidation-Reduction Reactions of the Halogens Jake Sieger Chemistry 121 11/10/11 T.A. – Teodora Zujovic Purpose : The observe oxidation-reduction reactions of the halogens and to use these observations to identify a halogen-containing anion.
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Procedure : Refer to pages 61-63 of General Chemistry Laboratory Experiments, Volume 1 by Robert Tatz and Judith Casey, Hayden-McNeil Publishing 2012. Report Sheet : See attached report sheet. Report Questions : 2. The ion and compound that could not disproportionate would be Br - and HClO 4 . Because the oxidation state for Br - is -1 meaning that it can not be oxidized any more, and the oxidation state for Cl is +7 meaning it can not be reduced any more. 5. A) The anion for this student’s unknown solution is going to be I - because the dichloroethane layer was dark red from my observations. Making the dichloroethane layer purple would mean that the correct anion is I - . Conclusion : In this experiment, we observed oxidation-reduction reactions of the halogens and to use these observations to identify a halogen-containing anion.
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First, we found the displacement reactions of the halogens. We did this by adding
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