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 28QRT: Calculate the pH change when 10.0 mL of 0.100-M NaOH is added to 90.0 mL pure water, and compare the...
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Question
Determination of buffer capacity
- Calibrate the pH meter @ pH 4, 7 and 10.
- Prepare 100 ml each of 0.1 M HCL and 0.1 M NaOH.
- Using assigned buffer determine the buffer capacity by adding 0.1 M HCl in 1 ml portions from a buret to a 20 ml of the buffer until its pH changes as monitored with a pH meter. Record the columen added. Repeat this step using 0.1 M NaOH instead.
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