In the direct titration of ascorbic acid with standard iodine, ascorbic acid is oxidized to dehydroascorbic acid.(true or false) In iodometry, a known amount of triiodide is first allowed to react with the analyte, and the unreacted portion is subsequently titrated with thiosulfate.(true or false) The end point in the titration of ascorbic acid is detected by using starch indicator, which imparts a deep blue color to the solution once complexed with the ascorbic acid.(true or false) When iodate and iodide react under acidic conditions, both are converted to the same species, which is iodine (I₂).(true or false)
In the direct titration of ascorbic acid with standard iodine, ascorbic acid is oxidized to dehydroascorbic acid.(true or false) In iodometry, a known amount of triiodide is first allowed to react with the analyte, and the unreacted portion is subsequently titrated with thiosulfate.(true or false) The end point in the titration of ascorbic acid is detected by using starch indicator, which imparts a deep blue color to the solution once complexed with the ascorbic acid.(true or false) When iodate and iodide react under acidic conditions, both are converted to the same species, which is iodine (I₂).(true or false)
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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- In the direct titration of ascorbic acid with standard iodine, ascorbic acid is oxidized to dehydroascorbic acid.(true or false)
- In iodometry, a known amount of triiodide is first allowed to react with the analyte, and the unreacted portion is subsequently titrated with thiosulfate.(true or false)
- The end point in the titration of ascorbic acid is detected by using starch indicator, which imparts a deep blue color to the solution once complexed with the ascorbic acid.(true or false)
- When iodate and iodide react under acidic conditions, both are converted to the same species, which is iodine (I₂).(true or false)
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