A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and titrated with a 0.050 M solution of NaOH. The pH of the solution was monitored throughout the titration, and the data were collected in the table below. Estimate the pH of the equivalence point. OH– added (mL) pH 0 3.09 5 3.65 10 4.10 15 4.50 17 4.55 18 4.71 19 4.94 20 5.11 21 5.37 22 5.93 22.2 6.24 22.6 9.91 22.8 10.2 23 10.4 24 10.8 25 11.0 30 11.5 40 11.8
A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and titrated with a 0.050 M solution of NaOH. The pH of the solution was monitored throughout the titration, and the data were collected in the table below. Estimate the pH of the equivalence point. OH– added (mL) pH 0 3.09 5 3.65 10 4.10 15 4.50 17 4.55 18 4.71 19 4.94 20 5.11 21 5.37 22 5.93 22.2 6.24 22.6 9.91 22.8 10.2 23 10.4 24 10.8 25 11.0 30 11.5 40 11.8
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter16: Acid-base Equilibria
Section: Chapter Questions
Problem 16.88QP: A 0.400-g sample of propionic acid was dissolved in water to give 50.0 mL of solution. This solution...
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A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and titrated with a 0.050 M solution of NaOH. The pH of the solution was monitored throughout the titration, and the data were collected in the table below. Estimate the pH of the equivalence point.
| OH– added (mL) | pH |
| 0 | 3.09 |
| 5 | 3.65 |
| 10 | 4.10 |
| 15 | 4.50 |
| 17 | 4.55 |
| 18 | 4.71 |
| 19 | 4.94 |
| 20 | 5.11 |
| 21 | 5.37 |
| 22 | 5.93 |
| 22.2 | 6.24 |
| 22.6 | 9.91 |
| 22.8 | 10.2 |
| 23 | 10.4 |
| 24 | 10.8 |
| 25 | 11.0 |
| 30 | 11.5 |
| 40 | 11.8 |
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