M of NaOH: 0.100 Volume  of HCI 25mL = 0.025L Moles of HCI = 2.5 mol What is the Volume of  NaOH  equivalence point: What is  Moles of NaOH  equaivalence point: What  is pH at equivalence point?

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)...
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M of NaOH: 0.100

Volume  of HCI 25mL = 0.025L

Moles of HCI = 2.5 mol

What is the Volume of  NaOH  equivalence point:

What is  Moles of NaOH  equaivalence point:

What  is pH at equivalence point?

What is calculated pH and experimental pH of NaOH at 0.00 mL , 12.50 mL, 25mL, and 30 mL.

Also what is the Error percentage for each one?

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
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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