6. A 5.00 ml sample of filtered orange juice was treated with 50.00 ml of 0.01023 M 13 –to oxidize ascorbic acid to dehydroascorbic acid. After the oxidation was complete,excess 13 – was back-titrated with 13.82 ml of 0.07203 M Na2S203 to starch indicatorend point. What is the concentration of ascorbic acid in the orange juice? Report theconcentration of ascorbic acid in mg/100 ml.C,H¿O, + I;¯ → C,H,O6 + 31 + 2H*5 + 25,0,2 → S,0,² + 31,Answer: 48.5 mg/100 mL

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concentration of asco

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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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

6. A 5.00 ml sample of filtered orange juice was treated with 50.00 ml of 0.01023 M 13 –
to oxidize ascorbic acid to dehydroascorbic acid. After the oxidation was complete,
excess 13 – was back-titrated with 13.82 ml of 0.07203 M Na2S203 to starch indicator
end point. What is the concentration of ascorbic acid in the orange juice? Report the
concentration of ascorbic acid in mg/100 ml.
C,H¿O, + I;¯ → C,H,O6 + 31 + 2H*
5 + 25,0,2 → S,0,² + 31,
Answer: 48.5 mg/100 mL

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