22) A student prepares aqueous sodium benzoate by adding 3.78 g of solid benzoic acid to 12 mL of 3 M aqueous NaOH solution. The student adds 6 M aqueous HCI to the solution until a precipitate is observed and the pH of the solution is acidic by pH paper. After cooling the mixture in ice for several minutes, the solid is recovered by vacuum filtration and allowed to dry. If 2.51 g of benzoic acid is obtained after drying, what is the percent recovery? a) 65.8 % b) 66.4 % c) 151 % d) 33.6 %

22) A student prepares aqueous sodium benzoate by adding 3.78 g of solid benzoic acid to 12 mL of 3 M aqueous NaOH solution. The student adds 6 M aqueous HCI to the solution until a precipitate is observed and the pH of the solution is acidic by pH paper. After cooling the mixture in ice for several minutes, the solid is recovered by vacuum filtration and allowed to dry. If 2.51 g of benzoic acid is obtained after drying, what is the percent recovery? a) 65.8 % b) 66.4 % c) 151 % d) 33.6 %

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter14: Principles Of Neutralization Titrations

Section: Chapter Questions

Problem 14.32QAP

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Similar questions

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A 10.00-g sample of the ionic compound NaA, where A is the anion of a weak acid, was dissolved in enough water to make 100.0 mL of solution and was then titrated with 0.100 M HCl. After 500.0 mL HCl was added, the pH was 5.00. The experimenter found that 1.00 L of 0.100 M HCl was required to reach the stoichiometric point of the titration. a. What is the molar mass of NaA? b. Calculate the pH of the solution at the stoichiometric point of the titration.
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