Exercise 5 Page 5 Illinois Central College CHEMISTRY 130 Laboratory Section: Name: PRELAB: Exp. 5 Chemical Stoichiometry: The Determination of Vitamin C. SHOW YOUR WORK 1. A 0.258 g sample of a powder containing some ascorbic acid required 14.50 mL of 0.100 M NaOH for complete neutralization. Calculate the purity of the ascorbic acid. moles of NaOH used in the titration moles of ascorbic acid reacted grams of ascorbic acid in sample Percent purity of the powder 2 A tablet of Vitamin C weighed 0.306 g and required 15.70 mL of 0.0300 M KIO, solution for oxidation to the blue starch-iodine endpoint. Calculate the percent ascorbic acid in the tablet. moles of KIO, used in the titration moles of ascorbic acid reacted grams of ascorbic acid in tablet Percent ascorbic acid in tablet

Exercise 5 Page 5 Illinois Central College CHEMISTRY 130 Laboratory Section: Name: PRELAB: Exp. 5 Chemical Stoichiometry: The Determination of Vitamin C. SHOW YOUR WORK 1. A 0.258 g sample of a powder containing some ascorbic acid required 14.50 mL of 0.100 M NaOH for complete neutralization. Calculate the purity of the ascorbic acid. moles of NaOH used in the titration moles of ascorbic acid reacted grams of ascorbic acid in sample Percent purity of the powder 2 A tablet of Vitamin C weighed 0.306 g and required 15.70 mL of 0.0300 M KIO, solution for oxidation to the blue starch-iodine endpoint. Calculate the percent ascorbic acid in the tablet. moles of KIO, used in the titration moles of ascorbic acid reacted grams of ascorbic acid in tablet Percent ascorbic acid in tablet

General Chemistry - Standalone book (MindTap Course List)

11th Edition

ISBN:9781305580343

Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Chapter15: Acids And Bases

Section15.2: Bronsted-lowry Concept Of Acids And Basses

Problem 15.1CC

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General Chemistry - Standalone book (MindTap Cour…

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ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning