Table of Acids with Ka and pKa Values* CLAS

Table of Acids with Ka and pKa Values* CLAS. Conjugate Base Acid HA A- Ka pKa Acid Strength Strength Hydroiodic HI I- Hydrobromic HBr Br- Perchloric HClO4 ClO4- Strong Acids completely dissociate in aq solution Hydrochloric HCl Cl- (Ka > 1, pKa < 1). Chloric HClO3 ClO3- Conjugate bases of strong Acids are ineffective bases. Sulfuric (1) H2SO4 HSO4- Nitric HNO3 NO3- Hydronium ion H3O+ H2O 1 Iodic HIO3 IO3- x 10-1 Oxalic (1) H2C2O4 HC2O4- x 10-2 Sulfurous (1) H2SO3 HSO3- x 10-2 Sulfuric (2) HSO4- SO42- x 10-2 Chlorous HClO2 ClO2- x 10-2 Phosphoric (1) H3PO4 H2PO4- x 10-3 Arsenic (1) H3 AsO4 H2 AsO4- x 10-3 Chloroacetic CH2 ClCOOH CH2 ClCOO- x 10-3 Citric (1) H3C6H5O7 H2C6H5O7- x 10-4 Hydrofluoric HF F- x 10-4 Nitrous HNO2 NO2- x 10-4 Formic HCOOH HCOO- x 10-4 Lactic HCH3H5O3 CH3H5O3- x 10-4 Ascorbic (1) H2C6H6O6 HC6H6O6- x 10-5 Benzoic C6H5 COOH C6H5 COO- x 10-5 Oxalic (2) HC2O4- C2O42- x 10-5 Hydrazoic HN3 N3- x 10-5 Citric (2) H2C6H5O7- HC6H5O72- x 10-5 Acetic CH3 COOH CH3 COO- x 10-5 Propionic CH3CH2 COOH CH3CH2 COO- x 10-5 Pyridinium ion C5H4NH+ C5H4N x 10-6 Citric (3) HC6H5O72- C6H5O73- x 10-6 Carbonic (1) H2CO3 HCO3- x 10-7 Sulfurous (2) HSO4- SO42- x 10-7 Arsenic (2) H2 AsO4- HAsO42- 8 x 10-8 x 10-7 x 10- Hydrosulfuric H2S HS- 8 7 - 2- -8.

Table of Acids with Ka and pKa Values* CLAS * Compiled from Appendix 5 Chem 1A, B, C Lab Manual and Zumdahl 6th Ed. The pKa values for organic acids can be found in

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