The ascorbic acid, C6H806 (176.124 g/mmol) content of a bottle of peach juice containing 2.50 L was determined by titration with a standard solution of potassium iodate, KIO3. The KIO3 solution was prepared by dissolving 100.4 mg primary standard grade KIO3 (214.001 mg/mmol) to a final volume of 250.0 mL. To a 200.00-mL aliquot of the sample, 10 mL of KI, 10 mL of HCI and 5 mL of starch solution were added and subsequently titrated, requiring 18.19 mL of the KIO3 titrant. The relevant reactions are given below: KIO3 + 5KI + 6H*→ 312 + 6K+ + 3H₂O C6H8O6 + 12 C6H6O6 +21+ 2H+

The ascorbic acid, C6H806 (176.124 g/mmol) content of a bottle of peach juice containing 2.50 L was determined by titration with a standard solution of potassium iodate, KIO3. The KIO3 solution was prepared by dissolving 100.4 mg primary standard grade KIO3 (214.001 mg/mmol) to a final volume of 250.0 mL. To a 200.00-mL aliquot of the sample, 10 mL of KI, 10 mL of HCI and 5 mL of starch solution were added and subsequently titrated, requiring 18.19 mL of the KIO3 titrant. The relevant reactions are given below: KIO3 + 5KI + 6H*→ 312 + 6K+ + 3H₂O C6H8O6 + 12 C6H6O6 +21+ 2H+

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter4: Reactions In Aqueous Solution

Section: Chapter Questions

Problem 53QAP: The molarity of iodine in solution can be determined by titration with arsenious acid, H3AsO4. The...

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