1. Education, 2016, Vol. 4, No. 1, 21-24. doi:10.12691/wjce-4-1-4
Table 1. pH of different acid solutions with the addition of 0.09 M NaOH
Volume of NaOH for Acid A (mL) pH
Volume of NaOH for Acid B (mL)
Volume of NaOH for Acid C (mL)
Volume of NaOH for Acid D (mL)
0.0
2.28
2.04
2.40
1.70
1.0
2.41
2.0
2.09
0.5
2.87
1.73
2.62
4.0
2.18
3.05
1.74
3.0
2.74
6.0
2.36
1.5
3.29
1.83
2.91
8.0
2.55
3.56
1.90
5.0
3.04
10.0
2.79
2.5
3.66
3.14
12.0
3.07
3.85
2.23
7.0
3.2
14.0
3.72
4.15
2.98
3.3
16.0
4.22
4.55
4.73
9.0
3.33
18.0
4.63
4.82
7.5
5.09
11.0
3.48
19.0
4.76
5.21
5.33
13.0
3.62
20.0
4.88
5.75
8.5
5.45
15.0
3.77
21.0
5.00
10.54
5.67
17.0
3.88
22.0
5.16
11.09
9.5
5.84
4.03
23.0
5.23
11.32
5.97
4.19
24.0
5.42
11.46
10.5
6.26
4.36
25.0
5.62 -
6.60
26.0
5.81
11.5
9.58
27.0
5.03
6.28
10.68
29.0
9.22
28.0
7.09
12.5
11.01
30.0
9.79
9.94
11.22
31.0
10.09
10.66
32.0
10.32
10.88
33.0
10.46
11.12
34.0
10.58
11.23
11.33
Shazia Perveen et al. Multiproticity of Weak Acids: Inflection Point vs. Equivalence Point. World Journal of Chemical
Education, 2016, Vol. 4, No. 1, doi: /wjce-4-1-4
© The Author(s) Published by Science and Education Publishing.