Table of Acids with Ka and pKa Values* CLAS

1 Table of Acids with Ka and pKa Values* CLAS acid HA A-Ka pKa acid Strength Conjugate Base Strength Hydroiodic HI I-Hydrobromic HBr Br-Perchloric HClO4 ClO4-Hydrochloric HCl Cl-Chloric HClO3 ClO3-Sulfuric (1) H2SO4 HSO4-Nitric HNO3NO3-Strong Acids completely dissociate in aq solution (Ka > 1, pKa < 1). Conjugate bases of strong Acids are ineffective bases. Hydronium ion H3O+H2O 1 Iodic x oxalic (1) x Sulfurous (1) x Sulfuric (2) x Chlorous x Phosphoric (1) x Arsenic (1) x Chloroacetic CH2 ClCOOH x Citric (1) x Hydrofluoric HF x Nitrous x Formic HCOOH x Lactic x Ascorbic (1) x Benzoic C6H5 COOH x oxalic (2) x Hydrazoic x Citric (2)

2 X Acetic CH3 COOH x Propionic CH3CH2 COOH x Pyridinium ion C5H4NH+C5H4N x Citric (3) x Carbonic (1) x Sulfurous (2) x Arsenic (2) H2 AsO4-HAsO42-8 x Hydrosulfuric H2S x 10-7 x 10-87 Phosphoric (2) x Hypochlorous HClO x Hypobromous HBrO BrO-2 x Hydrocyanic HCN x Boric (1) x Ammonium ion NH4+ x Phenol C6H5OH x Carbonic (2) x Hypoiodous HIO IO-2 x Arsenic (3) x 10-10 x Hydrogen peroxide x Ascorbic (2) x Phosphoric (3) x Water H2O x Group I metal hydroxides (LiOH, NaOH, etc.)

3 Group II metal hydroxides (Mg(OH)2, Ba(OH)2, etc.) Strong bases completely dissociate in aq solution (Kb > 1, pKb < 1). Conjugate Acids (cations) of strong bases are ineffective bases. * Compiled from Appendix 5 Chem 1A, B, C Lab Manual and Zumdahl 6th Ed. The pKa values for organic Acids can be found in Appendix II of Bruice 5th Ed. 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 Appendix II of Bruice 5th Ed.