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he no of mmoles of Potassium Bromate is Total mmoles of bromine is The no of mmoles of Na,S2 O3

he no of mmoles of Potassium Bromate is Total mmoles of bromine is The no of mmoles of Na,S2 O3

Chemistry
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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Vitamin C (ascorbic acid) content in tomato juice can be determined by oxidation with Brz: C,H,O, + Brz + 2H,0 D C,H,O, + 2Br + 2H,0* A 160.0 ml sample of tomato juice was acidified and titrated with 0.0107M KBrO3 containing excess KBr, it required 19.59 ml to reach the yellow end point indicating excess Br2. The excess Br2 was reacted with Kl and the liberated Iz was then titrated with 0.0500M Na,S2O3 and required 2.50 ml to reach the end point. Bro, + 5Br+ 6H* → 3Br, + 3H,0 21 + Br2 1+2Br ½+ 25,0,2 - 21 + S,06 a) Calculate vitamin C content as milligram/ounce (mg/oz), (1ounce = 30 ml) b) Determine the amount of tomato juice one would have to drink to meet the 30 mg minimum daily requirement. Answer the following questions. Give your answer to 4 Significant Figures: i) The no of mmoles of Potassium Bromate is ii) Total mmoles of bromine is
Transcribed Image Text:Vitamin C (ascorbic acid) content in tomato juice can be determined by oxidation with Brz: C,H,O, + Brz + 2H,0 D C,H,O, + 2Br + 2H,0* A 160.0 ml sample of tomato juice was acidified and titrated with 0.0107M KBrO3 containing excess KBr, it required 19.59 ml to reach the yellow end point indicating excess Br2. The excess Br2 was reacted with Kl and the liberated Iz was then titrated with 0.0500M Na,S2O3 and required 2.50 ml to reach the end point. Bro, + 5Br+ 6H* → 3Br, + 3H,0 21 + Br2 1+2Br ½+ 25,0,2 - 21 + S,06 a) Calculate vitamin C content as milligram/ounce (mg/oz), (1ounce = 30 ml) b) Determine the amount of tomato juice one would have to drink to meet the 30 mg minimum daily requirement. Answer the following questions. Give your answer to 4 Significant Figures: i) The no of mmoles of Potassium Bromate is ii) Total mmoles of bromine is
i) The no of mmoles of Potassium Bromate is ii) Total mmoles of bromine is iii) The no of mmoles of Na,S, O3 iv) The no of mmoles of iodine that reacted with sodium thiosulfate v) The no of mmoles of bromine equivalent to mmoles of iodine vi) The no of mmoles of bromine that reacted with ascorbic acid vii) The no of mmoles of ascorbic acid viii) The no of mg of ascorbic acid ix) Vitamin C content as mg/oz x) Amount of tomato juice to drink daily to meet 30 mg daily requirement of Vitamin Cin (ml) xi) What indicator can be used for this titration?
Transcribed Image Text:i) The no of mmoles of Potassium Bromate is ii) Total mmoles of bromine is iii) The no of mmoles of Na,S, O3 iv) The no of mmoles of iodine that reacted with sodium thiosulfate v) The no of mmoles of bromine equivalent to mmoles of iodine vi) The no of mmoles of bromine that reacted with ascorbic acid vii) The no of mmoles of ascorbic acid viii) The no of mg of ascorbic acid ix) Vitamin C content as mg/oz x) Amount of tomato juice to drink daily to meet 30 mg daily requirement of Vitamin Cin (ml) xi) What indicator can be used for this titration?
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