The data below is titration of Na2CO3 with HCl which is a diprotic titration curve. From the endpoint determinations, calculate the concentration of the carbonate solution if the [HCl] was 0.1036 M. use 10.00 mL of carbonate solution for the calculations     PH Burett vol added 11.30 0.00 0.00 10.80 0.98 0.98 10.51 1.95 0.97 10.28 3.00 2.02 10.10 3.99 3.01 9.92 4.99 4.01 9.74 5.95 4.97 9.54 6.97 5.99 9.28 7.95 6.97 8.86 8.97 7.99 8.70 9.18 8.2 8.52 9.35 8.37 8.39 9.49 8.51 8.26 9.60 8.62 8.09 9.71 8.73 7.97 9.82 8.84 7.90 9.90 8.92 7.93 10.21 9.23 7.87 10.32 9.34 7.84 10.42 9.44 7.75 10.53 9.55 7.65 10.63 9.65 7.57 10.75 9.77 7.53 10.85 9.87 7.49 10.96 9.98 7.05 11.95 10.97 6.76 12.99 12.01 6.56 13.98 13 6.39 14.93 13.95 6.24 15.98 15 6.07 16.98 16 6.21 17.05 16.07 6.24 17.15 16.17 6.25 17.25 16.27 6.30 17.32 16.34 6.37 17.40 16.42 6.41 17.50 16.52 6.46 17.58 16.6 6.47 17.63 16.65 6.45 17.72 16.74 6.44 17.80 16.82 6.42 17.90 16.92 6.40 18.00 17.02 6.39 18.09 17.11 6.36 18.18 17.2 6.32 18.25 17.27 6.28 18.32 17.34 6.21 18.43 17.45 6.15 18.53 17.55 6.10 18.63 17.65 6.03 18.73 17.75 5.92 18.82 17.84 5.82 18.90 17.92 5.65 18.99 18.01 3.18 19.50 18.52 2.87 19.99 19.01 2.67 20.51 19.53 2.56 20.99 20.01 2.46 21.50 20.52 2.39 22.00 21.02 2.33 22.51 21.53 2.26 23.00 22.02 2.20 23.51 22.53 2.17 23.99 23.01 2.13 24.50 23.52

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 16.57QE
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The data below is titration of Na2CO3 with HCl which is a diprotic titration curve. From the endpoint determinations, calculate the concentration of the carbonate solution if the [HCl] was 0.1036 M. use 10.00 mL of carbonate solution for the calculations

 

 

PH Burett vol added
11.30 0.00 0.00
10.80 0.98 0.98
10.51 1.95 0.97
10.28 3.00 2.02
10.10 3.99 3.01
9.92 4.99 4.01
9.74 5.95 4.97
9.54 6.97 5.99
9.28 7.95 6.97
8.86 8.97 7.99
8.70 9.18 8.2
8.52 9.35 8.37
8.39 9.49 8.51
8.26 9.60 8.62
8.09 9.71 8.73
7.97 9.82 8.84
7.90 9.90 8.92
7.93 10.21 9.23
7.87 10.32 9.34
7.84 10.42 9.44
7.75 10.53 9.55
7.65 10.63 9.65
7.57 10.75 9.77
7.53 10.85 9.87
7.49 10.96 9.98
7.05 11.95 10.97
6.76 12.99 12.01
6.56 13.98 13
6.39 14.93 13.95
6.24 15.98 15
6.07 16.98 16
6.21 17.05 16.07
6.24 17.15 16.17
6.25 17.25 16.27
6.30 17.32 16.34
6.37 17.40 16.42
6.41 17.50 16.52
6.46 17.58 16.6
6.47 17.63 16.65
6.45 17.72 16.74
6.44 17.80 16.82
6.42 17.90 16.92
6.40 18.00 17.02
6.39 18.09 17.11
6.36 18.18 17.2
6.32 18.25 17.27
6.28 18.32 17.34
6.21 18.43 17.45
6.15 18.53 17.55
6.10 18.63 17.65
6.03 18.73 17.75
5.92 18.82 17.84
5.82 18.90 17.92
5.65 18.99 18.01
3.18 19.50 18.52
2.87 19.99 19.01
2.67 20.51 19.53
2.56 20.99 20.01
2.46 21.50 20.52
2.39 22.00 21.02
2.33 22.51 21.53
2.26 23.00 22.02
2.20 23.51 22.53
2.17 23.99 23.01
2.13 24.50 23.52
Titration of Diprotic Weak base with Strong acid
12.00
10.00
Pka2
Ast end point
8.00
Pkal
2nd end point
E 6.00
4.00
2.00
0.00
0 1
3
4
5
6 7
8
9.
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
HCL Volume added (mL)
2.
Transcribed Image Text:Titration of Diprotic Weak base with Strong acid 12.00 10.00 Pka2 Ast end point 8.00 Pkal 2nd end point E 6.00 4.00 2.00 0.00 0 1 3 4 5 6 7 8 9. 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 HCL Volume added (mL) 2.
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