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Unformatted text preview: molarity of our standard thiosulfate to be .0855 M. This calculation was found from the stoichiometry and the volumes used in the experiment. This indicates that the sodium thiosulfate is slightly more dilute than it should have been (around .1 M). Due to this inaccuracy, the calculated percentage of sodium hypochlorite was probably lower than it should have been. We calculated it to be 5.34%. Household bleach claimed to be 6% sodium hypochlorite, so our results were still close. Post Lab Questions (attached) Conclusion Oxidation-reduction reactions can be used to determine various things about solutions. In this lab, we used it to determine the percentage of hypochlorite ion in laundry bleaching solutions. We were able to calculate this by using the same methods as you would for an acid-base reaction, and applying information we know about the mass, volume and concentrations....
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