Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociates in water: C6H5COOH(aq) + H₂O(1) C6H5COO- (aq) + H3O+ (aq) The pK₂ of this reaction is 4.2. In a 0.66 mol L¹ solution of benzoic acid, what percentage of the molecules are ionized?
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociates in water: C6H5COOH(aq) + H₂O(1) C6H5COO- (aq) + H3O+ (aq) The pK₂ of this reaction is 4.2. In a 0.66 mol L¹ solution of benzoic acid, what percentage of the molecules are ionized?
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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Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found
in foods, medications, and personal hygiene products. Benzoic acid dissociates in water:
C6H5 COOH(aq) + H₂O(1) C6H5COO- (aq) + H3O+ (aq)
-1
The pK₂ of this reaction is 4.2. In a 0.66 mol L-¹ solution of benzoic acid, what percentage of the molecules are
ionized?
Express your answer to two significant figures and include the appropriate units.
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