Answered: Refill the burette with the…

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Refill the burette with the standardized 0.5 M NaOH solution provided. Record the initial volume of NaOH in your notebook. Dispense a 10.00 mL aliquot of vinegar into a clean, dry 150 mL beaker (do not pipet directly from the bottle). Dilute this aliquot with exactly 75.0 mL of distilled water. Add 10 drops of phenolphthalein solution. a) Determine the mass of Acetic Acid in the Vinegar solution for each of the three trials in the titration procedure. Average the results. b) Determine the mass of the vinegar solution used for each titration. The density of vinegar is about 1.005 g/mL. c) Determine the Percentage Acetic Acid in the Vinegar.

PH vs Volume of NaOH added
14
12
10
Eauivalent oint
4.
2
2
6.
8
10
12
14
Volume of NaOH Added
1St Derivative
14
12
10
10
12
14
Volume of NaOH added(ml)
Hd
1st derivative

Table 1.1: Data table for the titration of vinegar
Burette reading (ml)
pH
Volune of NaOH solution used (ml)
48
3.74
0.0
47.5
4.09
0.5
47
4.2
1.0
44.5
4.65
3.5
44
4.71
4.0
43.5
4.89
4.5
43
4.94
5.0
42.5
4.97
5.5
42
5.07
6.0
41.5
5.2
6.5
41
5.26
7.0
40.5
5.31
7.5
40
5.36
8.0
39.5
5.42
8.5
39
5.55
9.0
38.5
5.02
9.5
38
5.86
10.0
37.5
6.03
10.5
37
6.86
11.0
36.8
9.17
11.2
36.6
10.27
11.4
36.4
10.68
11.6
36.2
10.99
11.8
36
11.28
12.0
12.2
12.4
35.8
11.43
35.6
11.61
35.4
11.67
12.6
35.2
11.79
12.8
35
11.94
13.0
34.8
12
13.2

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