Table of Conjugate Acid-Base Pairs

Table of Conjugate Acid-Base Pairs

pK

- 10 - 10 -9 - 6 - 3 - 1.7 - 1.3 0 1.9 1.9 2.1 2.7 2.8 2.9 3.1 3.1 3.3 3.8 4.2 4.8 6.4 7.1 7.2 7.2 7.2 9.2 9.2 10.4 11.6 12.3 12.9 15.7 24

perchloric acid hydrogen iodide hydrogen bromide hydrogen chloride

chloric acid

sulphurous acid

fluoroacetic acid chloroacetic acid bromoacetic acid iodoacetic acid hydrogen fluoride nitrous acid

benzoic acid

hydrogen sulphide hydrogen sulphite

hypochlorous acid

hydrogen cyanide

hydrogen peroxide

hydrogen sulphide

acid

HClO4

HI HBr HCl H2SO4

H3O^ HNO3

HClO3

HSO4



H2SO3

H3PO4

CH2FCOOH CH2ClCOOH CH2BrCOOH CH2ICOOH HF

HNO2

HCOOH C6H5COOH CH3COOH H2CO3

H2S HSO3



H2PO4



HClO NH4



HCN HCO3



H2O2

HPO4 2

HS^ H2O OH^

conj. base

ClO4



I^ Br^ Cl^ HSO4



H2O NO3



ClO3



SO4 2

HSO3



H2PO4



CH2FCOO^ CH2ClCOO^ CH2BrCOO^ CH2ICOO^ F^

NO2



HCOO^ C6H5COO^ CH3COO^ HCO3



HS^ SO3

2

HPO4 2

ClO^ NH3

CN^ CO3

2

HO2



PO4 3

S^2 OH^ O^2

perchlorate

chlorate

hydrogen sulphite

fluoroacetate chloroacetate bromoacetate iodoacetate

nitrite

benzoate

hydrogen sulphide sulphite

hypochlorite

cyanide

hydrogen peroxide anion

sulphide

oxide

pK

24 24 23 20 17 15.7 15.3 14.0 12.1 12.1 11.9 11.3 11.2 11.1 10.9 10.9 10.7 10.2 9.8 9.2 7.6 6.9 6.8 6.8 6.8 4.8 4.8 3.6 2.4 1.7 1.1 - 1.7 - 10