Consider the following method for the analysis of salicylic acid (MW 138.121) powder. "Dissolve about 500 mg of Salicylic Acid, accurately weighed, in 25 mL of diluted alcohol that previously has been neutralized with 0.1 M NaOH, add phenolphthalein TS, and titrate with 0.1 M NaOH VS." 0 OH OH Calculate the percentage purity of the salicylic acid from the data below. Show your reasoning clearly and record your final answer to four significant figures. Mass salicylic acid weighed: 503.7 mg Concentration NaOH = 0.1056 M Volume NaOH required to neutralise salicylic acid mixture = 45.45 mL
Consider the following method for the analysis of salicylic acid (MW 138.121) powder. "Dissolve about 500 mg of Salicylic Acid, accurately weighed, in 25 mL of diluted alcohol that previously has been neutralized with 0.1 M NaOH, add phenolphthalein TS, and titrate with 0.1 M NaOH VS." 0 OH OH Calculate the percentage purity of the salicylic acid from the data below. Show your reasoning clearly and record your final answer to four significant figures. Mass salicylic acid weighed: 503.7 mg Concentration NaOH = 0.1056 M Volume NaOH required to neutralise salicylic acid mixture = 45.45 mL
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
Chapter4: Types Of Chemical Reactions And Solution Stoichiometry
Section: Chapter Questions
Problem 47E
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