A. Calibration of pH probe (mark with check) B. Titration of HCI 1. M of NaOH (from bottle): 2. Volume of HCI: 25 0.100 mL = == pH = 4.0 D pH = 7.0 E pH=10.0 3. moles of HCI (MHCI X VHCI, in L) = 4. Volume of NaOH at equivalence point: M 0, 025 L 2.5 moles 0.1/75 mL = L 5. M of NaOH (experimental) at equivalence point (moles NaOH = moles HCl(1/VolNaOH) = 6. pH at equivalence point: Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading 0.00 l 1.00 1.60 2.00 اما ١٠ 16.00 2.0 26.50 10.15 17.00 2.08 27.00 0.97 18.00 2.13 27.50 11.15 3.00 42 19.00 2,20 28.00 11.24 4.00 20.00 1.64 2.27 28.50 1.34 5.00 20.50 2.32 29.00 11.42 6.00 1.69 21.00 2.31 29.00 7.00 8.00 1.71 11:72 21.50 2.43 30.00 11.53 22.00 31.00 2.51 9.00 1.76 22.50 2.59 32.00 11.66 10.00 1.78 23.00 2.7 34.00 11.79 11.00 81 23.50 2.81 36.00 11.86 12.00 11.85 24.00 2.99 38.00 11.94 13 42.50 1.88 24.50 3.29 40.00 12.00 13.00 1.92 25.00 4.30 42.00 12.03 14.00 1.97 25.50 7,21 45.00 12,10 15.00 2.00 26.00 0.17 50.00 127
A. Calibration of pH probe (mark with check) B. Titration of HCI 1. M of NaOH (from bottle): 2. Volume of HCI: 25 0.100 mL = == pH = 4.0 D pH = 7.0 E pH=10.0 3. moles of HCI (MHCI X VHCI, in L) = 4. Volume of NaOH at equivalence point: M 0, 025 L 2.5 moles 0.1/75 mL = L 5. M of NaOH (experimental) at equivalence point (moles NaOH = moles HCl(1/VolNaOH) = 6. pH at equivalence point: Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading 0.00 l 1.00 1.60 2.00 اما ١٠ 16.00 2.0 26.50 10.15 17.00 2.08 27.00 0.97 18.00 2.13 27.50 11.15 3.00 42 19.00 2,20 28.00 11.24 4.00 20.00 1.64 2.27 28.50 1.34 5.00 20.50 2.32 29.00 11.42 6.00 1.69 21.00 2.31 29.00 7.00 8.00 1.71 11:72 21.50 2.43 30.00 11.53 22.00 31.00 2.51 9.00 1.76 22.50 2.59 32.00 11.66 10.00 1.78 23.00 2.7 34.00 11.79 11.00 81 23.50 2.81 36.00 11.86 12.00 11.85 24.00 2.99 38.00 11.94 13 42.50 1.88 24.50 3.29 40.00 12.00 13.00 1.92 25.00 4.30 42.00 12.03 14.00 1.97 25.50 7,21 45.00 12,10 15.00 2.00 26.00 0.17 50.00 127
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.58QE
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Question
- What is pH with 0.00 mL NaOH added?
- What is pH 12.50 mL (half- way equivalence point)
- What is pH at 25.00 mL at equivalence point?
- What is pH at 30.00 mL after equivalence point?
Transcribed Image Text:A. Calibration of pH probe (mark with check)
B. Titration of HCI
1. M of NaOH (from bottle):
2. Volume of HCI: 25
0.100
mL =
==
pH = 4.0 D pH = 7.0 E pH=10.0
3. moles of HCI (MHCI X VHCI, in L) =
4. Volume of NaOH at equivalence point:
M
0, 025 L
2.5 moles 0.1/75
mL =
L
5. M of NaOH (experimental) at equivalence point (moles NaOH = moles HCl(1/VolNaOH) =
6. pH at equivalence point:
Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading
0.00 l
1.00
1.60
2.00
اما ١٠
16.00 2.0
26.50 10.15
17.00
2.08
27.00 0.97
18.00
2.13
27.50 11.15
3.00
42
19.00 2,20
28.00 11.24
4.00
20.00
1.64
2.27
28.50 1.34
5.00
20.50
2.32
29.00 11.42
6.00 1.69
21.00 2.31
29.00
7.00
8.00
1.71
11:72
21.50 2.43
30.00 11.53
22.00
31.00
2.51
9.00 1.76
22.50 2.59
32.00 11.66
10.00
1.78
23.00 2.7
34.00
11.79
11.00
81
23.50
2.81
36.00 11.86
12.00
11.85
24.00 2.99
38.00
11.94
13 42.50
1.88
24.50 3.29
40.00
12.00
13.00
1.92
25.00 4.30
42.00
12.03
14.00
1.97
25.50 7,21
45.00 12,10
15.00 2.00
26.00 0.17
50.00 127
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