Answered: What is the pKa of an acid if a buffer…

What is the pKa of an acid if a buffer made from 0.045 mol of the acid and 0.060 mol of its conjugate base in water has a pH of 3.75? 3.46 3.87 3.75 3.63 4.03

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter9: Acids, Bases, And Salts

Section: Chapter Questions

Problem 9.116E

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

What is the pKa of an acid if a buffer made from 0.045 mol of the acid and 0.060 mol of its conjugate base in water has a pH of 3.75?

3.46

3.87

3.75

3.63

4.03

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