Table 5E.1 Successive acidity constants of polyprotic acids at 298.15 K Acid pKa1 K2 pK2 pKa3 Carbonic acid, H,CO3 4.3 x 10-7 6.37 5.6 x 10-11 10.25 1.3 x 10 Hydrosulfuric acid, H,S Ethanedioic acid (oxalic acid), (COOH), 6.88 7.1 x 10-15 14.15 5.9 x 10-2 1.23 6.5 x 10-5 4.19 Phosphoric acid, H3PO4 7.6 x 10-3 2.12 6.2 x 10-8 7.21 2.1 x 10-13 12.67 Phosphorous acid, H,PO3 Sulfuric acid, H,SO4 1.0 x 10-2 2.00 2.6 x 10-7 6.59 Strong 1.2 x 10-2 1.92 Sulfurous acid, H2SO3 1.5 x 10-2 1.81 1.2 x 10-7 6.91 Tartaric acid, C,H,O2(COOH), 6.0 x 10-4 3.22 1.5 x 10-5 4.82
Table 5E.1 Successive acidity constants of polyprotic acids at 298.15 K Acid pKa1 K2 pK2 pKa3 Carbonic acid, H,CO3 4.3 x 10-7 6.37 5.6 x 10-11 10.25 1.3 x 10 Hydrosulfuric acid, H,S Ethanedioic acid (oxalic acid), (COOH), 6.88 7.1 x 10-15 14.15 5.9 x 10-2 1.23 6.5 x 10-5 4.19 Phosphoric acid, H3PO4 7.6 x 10-3 2.12 6.2 x 10-8 7.21 2.1 x 10-13 12.67 Phosphorous acid, H,PO3 Sulfuric acid, H,SO4 1.0 x 10-2 2.00 2.6 x 10-7 6.59 Strong 1.2 x 10-2 1.92 Sulfurous acid, H2SO3 1.5 x 10-2 1.81 1.2 x 10-7 6.91 Tartaric acid, C,H,O2(COOH), 6.0 x 10-4 3.22 1.5 x 10-5 4.82
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Use the values for the successive acidity constants for oxalic acid in the given table to calculate the molar concentrations of (COOH)2 , HOOCCO2-, (CO2)22-, H3O+ , and OH- in 0. 15 M (COOH)2(aq).
![Table 5E.1
Successive acidity constants of polyprotic acids at 298.15 K
Acid
pKa1
K2
pK2
pKa3
Carbonic acid, H,CO3
4.3 x 10-7
6.37
5.6 x 10-11
10.25
1.3 x 10
Hydrosulfuric acid, H,S
Ethanedioic acid (oxalic acid), (COOH),
6.88
7.1 x 10-15
14.15
5.9 x 10-2
1.23
6.5 x 10-5
4.19
Phosphoric acid, H3PO4
7.6 x 10-3
2.12
6.2 x 10-8
7.21
2.1 x 10-13
12.67
Phosphorous acid, H,PO3
Sulfuric acid, H,SO4
1.0 x 10-2
2.00
2.6 x 10-7
6.59
Strong
1.2 x 10-2
1.92
Sulfurous acid, H2SO3
1.5 x 10-2
1.81
1.2 x 10-7
6.91
Tartaric acid, C,H,O2(COOH),
6.0 x 10-4
3.22
1.5 x 10-5
4.82](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6e2a76e8-39a2-41b2-9c0a-279511c55c09%2F7ee193e4-2dec-4a29-9041-2478e37ad2ae%2Fauv6v8h.png&w=3840&q=75)
Transcribed Image Text:Table 5E.1
Successive acidity constants of polyprotic acids at 298.15 K
Acid
pKa1
K2
pK2
pKa3
Carbonic acid, H,CO3
4.3 x 10-7
6.37
5.6 x 10-11
10.25
1.3 x 10
Hydrosulfuric acid, H,S
Ethanedioic acid (oxalic acid), (COOH),
6.88
7.1 x 10-15
14.15
5.9 x 10-2
1.23
6.5 x 10-5
4.19
Phosphoric acid, H3PO4
7.6 x 10-3
2.12
6.2 x 10-8
7.21
2.1 x 10-13
12.67
Phosphorous acid, H,PO3
Sulfuric acid, H,SO4
1.0 x 10-2
2.00
2.6 x 10-7
6.59
Strong
1.2 x 10-2
1.92
Sulfurous acid, H2SO3
1.5 x 10-2
1.81
1.2 x 10-7
6.91
Tartaric acid, C,H,O2(COOH),
6.0 x 10-4
3.22
1.5 x 10-5
4.82
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