A 0.5130 g aspirin tablet which was dissolved in 95% ethanol required NaOH for neutralization. In the experiment, 42.78mL of 0.10000 M NaOH was added and the solution was heated to hydrolyze the acetylsalicylic acid. After the reaction mixture was cooled, the excess base was back-titrated with 14.29mL of 0.1056 M HCl. What % w/w of the tablet is acetylsalicylic acid (MM = 180.16 g/mol)? ---> CH3COOC6H4COOH (s) + 2 NaOH (aq) - (aq) + H2O (I) NaOH (aq) + HCI (aq) ---> NaCl (aq) + H₂O B 97.75% 13.07% 50.96% 48.62% CH3COONa (aq) + HỌC6H4COONa

A 0.5130 g aspirin tablet which was dissolved in 95% ethanol required NaOH for neutralization. In the experiment, 42.78mL of 0.10000 M NaOH was added and the solution was heated to hydrolyze the acetylsalicylic acid. After the reaction mixture was cooled, the excess base was back-titrated with 14.29mL of 0.1056 M HCl. What % w/w of the tablet is acetylsalicylic acid (MM = 180.16 g/mol)? ---> CH3COOC6H4COOH (s) + 2 NaOH (aq) - (aq) + H2O (I) NaOH (aq) + HCI (aq) ---> NaCl (aq) + H₂O B 97.75% 13.07% 50.96% 48.62% CH3COONa (aq) + HỌC6H4COONa

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.28QAP

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