Answered: You are asked to prepare 125.00 mL of a…

You are asked to prepare 125.00 mL of a buffer solution consisting of 0.10 M weak acid (HA) and O.10 M conjugate base (A¯¯). The target pH of the buffer solution is 5.45. The K a

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 1SP

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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

You are asked to prepare 125.00 mL of a buffer solution consisting of 0.10 M weak acid
(HA) and O.10 M conjugate base (A¯). The target pH of the buffer solution is 5.45. The K
a
of HA is 5.0 x 106. What volume of HA is required to make the buffer? You must show
your work to receive credit.

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