3. What measurements are needed in the titration of a weak acid? Explain in detail the technique or procedure for adding the titrant to accurately determine the concentration and pKa of the weak acid. Figure 1 shows the pH curve for the titration of 25.0 mL of a 0.10 M solution of acetic acid, CH3COOH, with 0.10 M sodium hydroxide solution. K₂ of acetic acid is 1.8 × 10-5. 13 12 11 10 9 8 T 7 65430 2 1 0 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Volume NaOH Added, mL Figure 1: Titration of Acetic Acid with NaOH.
3. What measurements are needed in the titration of a weak acid? Explain in detail the technique or procedure for adding the titrant to accurately determine the concentration and pKa of the weak acid. Figure 1 shows the pH curve for the titration of 25.0 mL of a 0.10 M solution of acetic acid, CH3COOH, with 0.10 M sodium hydroxide solution. K₂ of acetic acid is 1.8 × 10-5. 13 12 11 10 9 8 T 7 65430 2 1 0 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Volume NaOH Added, mL Figure 1: Titration of Acetic Acid with NaOH.
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 31QAP: Enough water is added to the buffer in Question 29 to make the total volume 10.0 L. Calculate (a)...
Related questions
Question
Transcribed Image Text:3. What measurements are needed in the titration of a weak acid? Explain in detail the technique
or procedure for adding the titrant to accurately determine the concentration and pKa of the
weak acid.
Transcribed Image Text:Figure 1 shows the pH curve for the titration of 25.0 mL of a 0.10 M solution of acetic acid, CH3COOH,
with 0.10 M sodium hydroxide solution. K₂ of acetic acid is 1.8 × 10-5.
13
12
11
10
9
8
T 7
65430
2
1
0
0.00
5.00
10.00
15.00
20.00
25.00
30.00
Volume NaOH Added, mL
Figure 1: Titration of Acetic Acid with NaOH.
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