Tabla ka y kb

Ka of Weak Acids
Name Formula Ka pKa
acetic HC2H3O2 1.8 x 10-5 4.7
ascorbic (I) H2C6H6O6 7.9 x10-5 4.1
ascorbic (II) HC6H6O6- 1.6 x 10-12 11.8
benzoic HC7H5O2 6.4 x 10-5 4.2
boric (I) H3BO3 5.4 x10-10 9.3
boric (II) H2BO3- 1.8 x 10-13 12.7
boric (III) HBO32- 1.6 x 10-14 13.8
carbonic (I) H2CO34.5 x 10-7 6.3
carbonic (II) HCO3- 4.7 x 10-11 10.3
citric (I) H3C6H5O7 3.2 x 10-7 6.5
citric (II)H2C6H5O7- 1.7 x 105 4.8
citric (III) HC6H5O72- 4.1 x 10-7 6.4
formic HCHO2 1.8 x 10-4 3.7hydrazidic HN3 1.9 x 10-5 4.7
hydrocyanic HCN 6.2 x 10-10 9.2
hydrofluoric HF 6.3 x 10-4 3.2
hydrogenperoxide H2O2 2.4 x 10-12 11.6
hydrogen sulfate ion HSO4- 1.2 x 10-2 1.9
hypochlorous HOCl 3.5 x 10-8 7.5lactic HC3H5O3 8.3 x 10-4 3.1
nitrous HNO2 4.0 x 10-4 3.4
oxalic (I) H2C2O4 5.8 x 10-2 1.2
oxalic(II) HC2O4- 6.5 x 10-5 4.2
phenol HOC6H5 1.6 x 10-10 9.8
propanic HC3H5O2 1.3 x 10-5 4.9
sulfurous(I) H2SO3 1.4 x 10-2 1.85
sulfurous (II) HSO3- 6.3 x 10-8 7.2
uric HC5H3N4O3 1.3 x 10-4 3.9