of m-chlorobenzoic acid, HC7H4CIO2, is 1.5x 10-4. (a) Suppose buffer #1 is prepared using 40.0 mL 0.1 M HC7H4CIO2 and 60.0 mL 0.1 M C7H4CIO2 to give a final volume of 100.0 mL. What is the pH of this buffer? 4.0 (b) Suppose a buffer #2 is prepared using 60.0 mL 0.1 M HC7H4CIO2 and 40.0 mL 0.1 M C7H4CIO2 to give a final volume c 100.0 mL. What is the pH of this buffer? 4.0 (c) Why is buffer #2 more acidic than buffer #1? It has a greater volume of base. O It has a greater final volume. O It was prepared after buffer #1. It has a higher acid concentration.
of m-chlorobenzoic acid, HC7H4CIO2, is 1.5x 10-4. (a) Suppose buffer #1 is prepared using 40.0 mL 0.1 M HC7H4CIO2 and 60.0 mL 0.1 M C7H4CIO2 to give a final volume of 100.0 mL. What is the pH of this buffer? 4.0 (b) Suppose a buffer #2 is prepared using 60.0 mL 0.1 M HC7H4CIO2 and 40.0 mL 0.1 M C7H4CIO2 to give a final volume c 100.0 mL. What is the pH of this buffer? 4.0 (c) Why is buffer #2 more acidic than buffer #1? It has a greater volume of base. O It has a greater final volume. O It was prepared after buffer #1. It has a higher acid concentration.
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 14QAP: A buffer solution is prepared by adding 5.50 g of ammonium chloride and 0.0188 mol of ammonia to...
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Transcribed Image Text:a of m-chlorobenzoic acid, HC7H4CIO2, is 1.5x 10-4.
(a) Suppose buffer #1 is prepared using 40.0 mL 0.1 M HC7H4CIO2 and 60.0 mL 0.1 M C7H4CIO₂ to give a final volume of
100.0 mL. What is the pH of this buffer?
4.0
(b) Suppose a buffer #2 is prepared using 60.0 mL 0.1 M HC7H4ClO2 and 40.0 mL 0.1 M C7H4CIO₂ to give a final volume
100.0 mL. What is the pH of this buffer?
4.0
(c) Why is buffer #2 more acidic than buffer #1?
O It has a greater volume of base.
O It has a greater final volume.
O It was prepared after buffer #1.
It has a higher acid concentration.
-
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