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Unformatted text preview: And, from the moles of KIO 3 used we could determine the experimental mass of Ascorbic acid again. The moles of KIO 3 used were .0021 moles for both trials, and that gave us an experimental mass of .3696 grams of Ascorbic acid. Our initial mass of Ascorbic Acid was .4 grams and therefore determined that cooking foods that contain Vitamin C does not make a great effect on the antioxidant Vitamin C. The net chemical equation was: C 6 H 8 O 6 + I 2 2I-+ 2H + In part three of the experiment we analyzed Vitamin C tablets to obtain the experimental mass of Ascorbic Acid calculated from the moles of KIO 3 titrated with crushed Ascorbic Acid and in trial two also including KI and HCl. We also determined the percent mass of Ascorbic Acid in each tablet for both trials. The masses were: .55968 g and .5016 g; the percent mass of Ascorbic Acid in each tablet was 90% and 81% respectively. The net chemical equation was: I 2 + I- I 3-...
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- Winter '08