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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Question 3D and 3e
Add-ins
Tables
fx
M
F3
G
D
A
B
pH
volume of NaoH
1
1.2
10
volume of NaoH
1.4
1.6
15
2
20
2.7
24
24.5
25
11
25.5
11.4
26
12
30
13
12.2
14
12.3
10
12
14
19
00
6.
8 お
3.
2.
CO
2.
Transcribed Image Text:Add-ins Tables fx M F3 G D A B pH volume of NaoH 1 1.2 10 volume of NaoH 1.4 1.6 15 2 20 2.7 24 24.5 25 11 25.5 11.4 26 12 30 13 12.2 14 12.3 10 12 14 19 00 6. 8 お 3. 2. CO 2.
A student following the procedure described in this experiment obtained the following data for
the titration of 25.00 mL of 0.10 M hydrochloric acid with NaOH solution.
volume of NaOH, mL
pH
1.0
5.00
1.2
1.4
10.00
15.00
1.6
20.00
2.0
24.00
2.7
24.50
3.0
25.00
7.0
Im 0.2
25.50
26.00
Im
11.0
11.4
30.00
12.0
35.00
12.2
40.00
12.3
1.
Plot a titration curve for the data listed above.
Determine the equivalence point from the curve, and mark on your graph the pH at the
equivalence point and the number of mL of NaOH needed to reach the equivalent point.
Calculate [H*] and [OH'] for each of the following:
a. before the addition of sodium hydroxide solution.
b. after the addition of 10.00 mL of NaOH solution.
c. at the equivalence point.
d. after the addition of 0.20 mL of NaOH solution past the equivalence point (estimate
off the graph).
e. after the last addition of NaOH solution.
2.
3.
54
Transcribed Image Text:A student following the procedure described in this experiment obtained the following data for the titration of 25.00 mL of 0.10 M hydrochloric acid with NaOH solution. volume of NaOH, mL pH 1.0 5.00 1.2 1.4 10.00 15.00 1.6 20.00 2.0 24.00 2.7 24.50 3.0 25.00 7.0 Im 0.2 25.50 26.00 Im 11.0 11.4 30.00 12.0 35.00 12.2 40.00 12.3 1. Plot a titration curve for the data listed above. Determine the equivalence point from the curve, and mark on your graph the pH at the equivalence point and the number of mL of NaOH needed to reach the equivalent point. Calculate [H*] and [OH'] for each of the following: a. before the addition of sodium hydroxide solution. b. after the addition of 10.00 mL of NaOH solution. c. at the equivalence point. d. after the addition of 0.20 mL of NaOH solution past the equivalence point (estimate off the graph). e. after the last addition of NaOH solution. 2. 3. 54
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