4.75 В. 4.80 С. 4.65 D. 4.79 ywords: buffer, neutralization, weak acid, conjugate acid, conjugate base, Ka, pH, Henderson-Hasselbach ation, strong base, grams, moles, molar mass, Bronsted-Lowry acid, Bronsted-Lowry base ncepts: How buffers maintain solution pH.

Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter14: Acid- Base Equilibria
Section: Chapter Questions
Problem 4RQ: A good buffer generally contains relatively equal concentrations of weak acid and conjugate base. If...
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5.) A 5.00 L solution is 0.100 M in benzoic acid (Ka = 6.3 x 10-5) and 0.200 M in calcium benzoate. What is
the pH of this solution after 5.00 mL 10.0 M HCl are added?
А. 4.75
В. 4.80
С. 4.65
D. 4.79
Keywords: buffer, neutralization, weak acid, conjugate acid, conjugate base, Ka, pH, Henderson-Hasselbach
Equation, strong base, grams, moles, molar mass, Bronsted-Lowry acid, Bronsted-Lowry base
Concepts: How buffers maintain solution pH.
Transcribed Image Text:5.) A 5.00 L solution is 0.100 M in benzoic acid (Ka = 6.3 x 10-5) and 0.200 M in calcium benzoate. What is the pH of this solution after 5.00 mL 10.0 M HCl are added? А. 4.75 В. 4.80 С. 4.65 D. 4.79 Keywords: buffer, neutralization, weak acid, conjugate acid, conjugate base, Ka, pH, Henderson-Hasselbach Equation, strong base, grams, moles, molar mass, Bronsted-Lowry acid, Bronsted-Lowry base Concepts: How buffers maintain solution pH.
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