QUESTION 14 Malic acid (C4H605) is a dicarboxylic acid that naturally occurs in the production of bignay wine. Maria was tasked to find out the acid content in a 200.0 mL wine sample by titrating it with a standardized solution of KOH. He was able to establish the working concentration of the KOH solution by using 39.12 mL of it to titrate a primary standard of KHP that weighed 3.021 g. The grams and %w/w of Malic acid present in the 200.0 mL wine sample were then determined by titrating a 20.00 ml aliquot using 48.95 mL of the standardized KOH solution. C4H605 (aq) + 2KOH (aq) -- K2C4H405 (aq) + 2H20 (1) Assume the density of the wine sample is 1.000 g/mL MM of KHP = 204.22 g/mol MM of C4HGO5 = 134.0874 g/mol What is the molar concentration of A. 2.114 the prepared KOH solution? v Calculate for the grams of Malic acid in the 100.0 mL wine sample? B. 5.462 C. 0.3781 What is the percent by mass Malic D. 1.241 acid in the 100.0 mL wine sample? E. 0.3187 F. 0.4517 G. 5.624 H. 0.4175 1. 6.205 J. 1.365 K 6.502 L 3. 165

QUESTION 14 Malic acid (C4H605) is a dicarboxylic acid that naturally occurs in the production of bignay wine. Maria was tasked to find out the acid content in a 200.0 mL wine sample by titrating it with a standardized solution of KOH. He was able to establish the working concentration of the KOH solution by using 39.12 mL of it to titrate a primary standard of KHP that weighed 3.021 g. The grams and %w/w of Malic acid present in the 200.0 mL wine sample were then determined by titrating a 20.00 ml aliquot using 48.95 mL of the standardized KOH solution. C4H605 (aq) + 2KOH (aq) -- K2C4H405 (aq) + 2H20 (1) Assume the density of the wine sample is 1.000 g/mL MM of KHP = 204.22 g/mol MM of C4HGO5 = 134.0874 g/mol What is the molar concentration of A. 2.114 the prepared KOH solution? v Calculate for the grams of Malic acid in the 100.0 mL wine sample? B. 5.462 C. 0.3781 What is the percent by mass Malic D. 1.241 acid in the 100.0 mL wine sample? E. 0.3187 F. 0.4517 G. 5.624 H. 0.4175 1. 6.205 J. 1.365 K 6.502 L 3. 165

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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