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 pH = 4.0 D pH = 7.0 E pH=10.0 M mL = 0, 025 L == 3. moles of HCI (MHCI X VHCI, in L) = 4. Volume of NaOH at equivalence point: 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 pH = 4.0 D pH = 7.0 E pH=10.0 M mL = 0, 025 L == 3. moles of HCI (MHCI X VHCI, in L) = 4. Volume of NaOH at equivalence point: 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 Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter14: Equilibria In Acid-base Solutions
Section: Chapter Questions
Problem 74QAP: Fifty cm3 of 1.000 M nitrous acid is titrated with 0.850 M NaOH. What is the pH of the solution (a)...
Related questions
Question
What is caculated pH at 0.00 mL of NaOH and Percentage error? Experiement pH 1.61
What is caculated pH at 12.50 mL of NaOH and Percentage error? Experiement pH is 1.85
What is caculated pH at 25.00 mL of NaOH and Percentage error? Experiement pH is 4.30
What is caculated pH at 30.00 mL of NaOH and Percentage error? Experiement pH is 11.53
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
pH = 4.0 D pH = 7.0 E pH=10.0
M
mL = 0, 025 L
==
3. moles of HCI (MHCI X VHCI, in L) =
4. Volume of NaOH at equivalence point:
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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