Explain why the pH at the equivalence point is not 7.00 (the pH of neutral water).

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter14: Acids And Bases
Section: Chapter Questions
Problem 9RQ: What is a salt? List some anions that behave as weak bases in water. List some anions that have no...
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A student used a pH meter to collect data for the titration of an unknown concentration of propanoic acid with a
0.150 mol/L solution of sodium hydroxide. The data table from the investigation is shown in the table below.
Data for the Titration of Propanoic Acid with Sodium Hydroxide
Volume of propanoic acid: 25.00 mL
[NaOH] = 0.150 mol/L
Volume of NaOH (aq)
added (mL)
0.00
2.00
4.11
7.98
11.95
14.08
16.05
17.00
17.21
17.39
17.62
17.99
18.18
18.39
18.80
20.00
22.03
PH
2.83
3.84
4.20
4.64
5.03
5.27
5.61
5.90
6.00
6.09
6.23
6.74
8.80
10.92
12.24
12.56
12.69
Adobe 4343625416
00..
Transcribed Image Text:A student used a pH meter to collect data for the titration of an unknown concentration of propanoic acid with a 0.150 mol/L solution of sodium hydroxide. The data table from the investigation is shown in the table below. Data for the Titration of Propanoic Acid with Sodium Hydroxide Volume of propanoic acid: 25.00 mL [NaOH] = 0.150 mol/L Volume of NaOH (aq) added (mL) 0.00 2.00 4.11 7.98 11.95 14.08 16.05 17.00 17.21 17.39 17.62 17.99 18.18 18.39 18.80 20.00 22.03 PH 2.83 3.84 4.20 4.64 5.03 5.27 5.61 5.90 6.00 6.09 6.23 6.74 8.80 10.92 12.24 12.56 12.69 Adobe 4343625416 00..
6. Explain why the pH at the equivalence point is not 7.00 (the pH of neutral water).
Transcribed Image Text:6. Explain why the pH at the equivalence point is not 7.00 (the pH of neutral water).
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