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 x 105. 13 12 11 10 9 8 I 7 6 5 4 3 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. 1. At what point in the titration does the concentration of acetic acid, CH3COOH, equal the concentration of the acetate ion, CH3COO? What is the pH of the equimolar, ideal buffer solution at this point?
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 x 105. 13 12 11 10 9 8 I 7 6 5 4 3 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. 1. At what point in the titration does the concentration of acetic acid, CH3COOH, equal the concentration of the acetate ion, CH3COO? What is the pH of the equimolar, ideal buffer solution at this point?
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)...
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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 x 105.
13
12
11
10
9
8
I 7
6
5
4
3
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.
1. At what point in the titration does the concentration of acetic acid, CH3COOH, equal the
concentration of the acetate ion, CH3COO? What is the pH of the equimolar, ideal buffer
solution at this point?
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