Both benzoic acid and the sodium salt of its conjugate base, sodium benzoate, are common preservatives in foods. A food producer wishes to transition from the manufacture of 10-2 M stock solutions of benzoic acid to 10-2 M stock solutions of sodium benzoate by adding NaOH. Estimate the pH of the mixture at the beginning, middle, and end of the transition? The pKa = 4.2. Draw the %3D
Both benzoic acid and the sodium salt of its conjugate base, sodium benzoate, are common preservatives in foods. A food producer wishes to transition from the manufacture of 10-2 M stock solutions of benzoic acid to 10-2 M stock solutions of sodium benzoate by adding NaOH. Estimate the pH of the mixture at the beginning, middle, and end of the transition? The pKa = 4.2. Draw the %3D
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.92QP: Sodium benzoate, NaC7H5O2, is used as a preservative in foods. Consider a 50.0-mL sample of 0.250 M...
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Transcribed Image Text:Both benzoic acid and the sodium salt of its
conjugate base, sodium benzoate, are
common preservatives in foods.
A food producer wishes to transition from the
manufacture of 10-2 M stock solutions of
benzoic acid to 10-2 M stock solutions of
sodium
benzoate by adding NaOH. Estimate the pH of
the mixture at the beginning, middle, and
end of the transition? The pka = 4.2. Draw the
pC-pH diagram labeling all constituents
and the pH vs f titration curve sufficiently to
cover the entire pH range to answer this
question.
%3D
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