Generic pKa and pKb values

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21 Terms

1
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R-CO2H  

pKa 4

2
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Ar-CO2H

pKa 4

3
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CF3-CO2H

pKa 1

4
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R-SO3H

pKa 1

5
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Ar-SO3H

pKa 1

6
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R-OH

pKa 14

7
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Ph-OH

pKa 10

8
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R-SH

pKa 11

9
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H2O

pKa 14

10
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NH3

pKb 5 (3H)

11
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R-NH2

pKb 5 (2H)

12
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R2-NH

pKb 5 (1H)

13
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R3-N

pKb 5 (0H)

14
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<p>Imidazole</p>

Imidazole

pKb 7

15
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<p>Pyridine </p>

Pyridine

pKb 9

16
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<p>Aniline </p>

Aniline

pKb 10

17
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<p>DBU (amidine base)&nbsp;</p>

DBU (amidine base) 

pKb 2

18
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<p>Guanidine </p>

Guanidine

pKb 1

19
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<p>Pyrrole</p>

Pyrrole

pKb 14

20
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<p>Pyrrolidine&nbsp;</p>

Pyrrolidine 

pKb 3

21
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<p>Purine</p>

Purine

pKb 4,5,12 (3 basic centers)