The amount of ascorbic acid, C6H8O6, in orange juice was determined by oxidizing the ascorbic acid to
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The amount of ascorbic acid, C6H8O6, in orange juice was determined by oxidizing the ascorbic acid to dehydroascorbic acid C6H8O6with a known excess I3-and back titrating the excess I3- with Na2S2O3. A 5.00 mL- sample of filtered orange juice was treated with 50.00 mL of excess 0.01023 M I3-. After the oxidation was complete, 13.82 mL of 0.07203 M Na2S2O3was needed to reach the starch indicator end point. Report the concentration of ascorbic acid in milligrams per 100 mL.
Related Book For
Fundamentals of Analytical Chemistry
ISBN: 978-0495558286
9th edition
Authors: Douglas A. Skoog,Donald M. West, F. James Holler, Stanley R. Crouch
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