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Unformatted text preview: same titration as in part I, except only after we heated the ascorbic acid and DI water solution. We found the amount lost to be .009g and .004g. In part III we found the percent ascorbic acid in Vitamin C tablets by again titrating the tablets with potassium iodide. From the weight of the tablet versus the weight calculated of ascorbic acid in the tablet, we found the percents in two tablets to be 84.4% and 84.0%. Errors could be attributed to over heating the ascorbic acid in part II and evaporating all the water. Using different scales to weigh each item might have affected the results. A slight error could be attributed to not quite accurate measurements made....
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This note was uploaded on 05/03/2008 for the course CHEM 1BL taught by Professor Davis during the Winter '08 term at UCSB.
- Winter '08