1. Create the following charts: a. Titration curve with pH as a function of the volume of NaOH. b. First derivative of the titration curve. 2. Calculate the half-neutralization point based on the equivalence point. If the acid is polyprotic, calculate both half-neutralization points. 3. Calculate the pKa of the acid. If the acid is polyprotic, calculate both pKa values. 4. Use the first equivalence point volume to determine the moles of acid that was titrated. 5. Calculate the molar mass of the unknown acid. 6. Use the pKa and the molar mass of the unknown acid to identify it. Then calculate the percent error based on the molar mass.
1. Create the following charts: a. Titration curve with pH as a function of the volume of NaOH. b. First derivative of the titration curve. 2. Calculate the half-neutralization point based on the equivalence point. If the acid is polyprotic, calculate both half-neutralization points. 3. Calculate the pKa of the acid. If the acid is polyprotic, calculate both pKa values. 4. Use the first equivalence point volume to determine the moles of acid that was titrated. 5. Calculate the molar mass of the unknown acid. 6. Use the pKa and the molar mass of the unknown acid to identify it. Then calculate the percent error based on the molar mass.
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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Transcribed Image Text:1. Create the following charts:
a. Titration curve with pH as a function of the volume of NaOH.
b. First derivative of the titration curve.
2. Calculate the half-neutralization point based on the equivalence point. If the
acid is polyprotic, calculate both half-neutralization points.
3. Calculate the pKa of the acid. If the acid is polyprotic, calculate both pka
values.
4. Use the first equivalence point volume to determine the moles of acid that was
titrated.
5. Calculate the molar mass of the unknown acid.
6. Use the pKa and the molar mass of the unknown acid to identify it. Then
calculate the percent error based on the molar mass.
Transcribed Image Text:Data Set 4
Molarity of Base
Mass of Acid
0.1000 M
0.2642 g
mL Base
pH
2.70
1
2.95
3.29
3
3.50
4
3.66
3.80
6.
3.92
7
4.04
8.
4.16
4.28
10
4.40
11
4.54
11.5
4.62
12
4.70
12.5
4.80
13
4.91
13.5
5.05
14
5.25
14.2
5.35
14.4
5.48
14.6
5.66
14.8
5.97
15
8.31
15.2
10.65
15.4
10.95
15.6
11.12
15.8
11.24
16
11.34
17
11.63
18
11.80
19
11.91
20
12.00
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