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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Answered: concentration of asco

Science

Chemistry

concentration of asco

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter7: Extraction

Section: Chapter Questions

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Concept explainers

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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