Calculate the pH of the following solutions.  0.10 M pryidoxal-t-phosphate hydrochloride

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Calculate the pH of the following solutions. 

  • 0.10 M pryidoxal-t-phosphate hydrochloride

 

 

Structure
pK,
K.
Name
NH;
CHCH,-O
2.20 (СО,Н)
9.31 (NH,)
6.3 X 10-3
4.9 x 10-10
Phenylalanine
CO,H
7.11 x 10-3
6.34 x 10-8
2.148
* 7.198
Phosphoric acid*
(hydrogen phosphate)
НО — Р— Он
12.375
4.22 X 10-13
OH
(1.5)
6.78
3 x 10-2
1.66 x 10-7
HP-
он
Phosphorous acid
(hydrogen phosphite)
OH
1.12 x 10-3
3.90 x 10-6
2.950
Phthalic acid
(benzene-1,2-dicarboxylic acid)
5.408
cO,H
Piperazine
(perhydro- 1,4-diazine)
5.333
9.731
4.65 x 10-6
1.86 X 10-10
11.125
7.50 x 10-12
Piperidine
1.12 x 10-2
2.29 x 10-11
-co,H
1.952 (СO,Н)
10.640 (NH,)
Prolinc
+H
4.874
1.34 x 10-5
Propanoic acid
CH,CH,CO,H
H,C=CHCO,H
4.258
5.52 x 10-5
Propenoic acid
(аcrylic acid)
10.566
2.72 x 10-11
Propylamine
CH;CH,CH,NII;
5.20
6.3,X 10-6
Pyridine
(azine)
Pyridine-2-carboxylic acid
(picolinic acid)
(1.01) (CO,H)
5.39 (NH)
9.8 x 10-2
4.1 x 10-6
co,H
HO,C
Pyridine-3-carboxylic acid
(nicotinic acid)
2.03 (CO,H)
4.82 (NH)
9.3 x 10-3
1.51 x 10-s
NH+
1.4 (POH) (u = 0.1)
3.44 (OH) (1p. = 0.1)
6.01 (POH) (u = 0.1)
8.45 (NH) (u = 0.1)
0.04
3.6 x 10-4
9.8 x 10-7
3.5 x 10-9
0=CH
Pyridoxal-5-phosphate
Но — РОСН,
но
`CH,
H.
0.15
5.5 X 10-3
1.9 X 10-7
3.5 X 10-10
Pyrophosphoric acid
(hydrogen diphosphate)
0.83
2.26
(HO),POP(OH),
6.72
9.46
*pK, from A. G. Miller and J. W. Macklin, Anal. Chem. 1983, 55, 684.
APPENDIX G Acid Dissociation Constants
АP18
Transcribed Image Text:Structure pK, K. Name NH; CHCH,-O 2.20 (СО,Н) 9.31 (NH,) 6.3 X 10-3 4.9 x 10-10 Phenylalanine CO,H 7.11 x 10-3 6.34 x 10-8 2.148 * 7.198 Phosphoric acid* (hydrogen phosphate) НО — Р— Он 12.375 4.22 X 10-13 OH (1.5) 6.78 3 x 10-2 1.66 x 10-7 HP- он Phosphorous acid (hydrogen phosphite) OH 1.12 x 10-3 3.90 x 10-6 2.950 Phthalic acid (benzene-1,2-dicarboxylic acid) 5.408 cO,H Piperazine (perhydro- 1,4-diazine) 5.333 9.731 4.65 x 10-6 1.86 X 10-10 11.125 7.50 x 10-12 Piperidine 1.12 x 10-2 2.29 x 10-11 -co,H 1.952 (СO,Н) 10.640 (NH,) Prolinc +H 4.874 1.34 x 10-5 Propanoic acid CH,CH,CO,H H,C=CHCO,H 4.258 5.52 x 10-5 Propenoic acid (аcrylic acid) 10.566 2.72 x 10-11 Propylamine CH;CH,CH,NII; 5.20 6.3,X 10-6 Pyridine (azine) Pyridine-2-carboxylic acid (picolinic acid) (1.01) (CO,H) 5.39 (NH) 9.8 x 10-2 4.1 x 10-6 co,H HO,C Pyridine-3-carboxylic acid (nicotinic acid) 2.03 (CO,H) 4.82 (NH) 9.3 x 10-3 1.51 x 10-s NH+ 1.4 (POH) (u = 0.1) 3.44 (OH) (1p. = 0.1) 6.01 (POH) (u = 0.1) 8.45 (NH) (u = 0.1) 0.04 3.6 x 10-4 9.8 x 10-7 3.5 x 10-9 0=CH Pyridoxal-5-phosphate Но — РОСН, но `CH, H. 0.15 5.5 X 10-3 1.9 X 10-7 3.5 X 10-10 Pyrophosphoric acid (hydrogen diphosphate) 0.83 2.26 (HO),POP(OH), 6.72 9.46 *pK, from A. G. Miller and J. W. Macklin, Anal. Chem. 1983, 55, 684. APPENDIX G Acid Dissociation Constants АP18
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