Table of Acids w Kas and pKas

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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 HClO4ClO4-Hydrochloric HCl Cl-Chloric HClO3ClO3-Sulfuric (1) H2SO4HSO4-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 0.0 Iodic HIO3IO3-1.6 x 10-10.80 Oxalic (1) H2C2O4HC2O4-5.9 x 10-21.23 Sulfurous (1) H2SO3HSO3-1.54 x 10-21.81 Sulfuric (2) HSO4-SO42-1.2 x 10-21.92 Chlorous HClO2ClO2-1.1 x 10-21.96 Phosphoric (1) H3PO4H2PO4-7.52 x 10-32.12 Arsenic (1) H3AsO4H2AsO4-5.0 x 10-32.30 Chloroacetic CH2ClCOOH CH2ClCOO-1.4 x 10-32.85 Citric (1) H3C6H5O7H2C6H5O7-8.4 x 10-43.08 Hydrofluoric HF F-7.2 x 10-43.14 Nitrous HNO2NO2-4.0 x 10-43.39 Formic HCOOH HCOO-1.77 x 10-43.75 Lactic HCH3H5O3CH3H5O3-1.38 x 10-43.86 Ascorbic (1) H2C6H6O6HC6H6O6-7.9 x 10-54.10 Benzoic C6H5COOH C6H5COO-6.46 x 10-54.19 Oxalic (2) HC2O4-C2O42-6.4 x 10-54.19 Hydrazoic HN3N3-1.9 x 10-54.72 Citric (2) H2C6H5O7-HC6H5O72-1.8 x 10-54.74 Acetic CH3COOH CH3COO-1.76 x 10-54.75 Propionic CH3CH2COOH CH3CH2COO-1.34 x 10-54.87 Pyridinium ion C5H4NH+C5H4N 5.6 x 10-65.25 Citric (3) HC6H5O72-C6H5O73-4.0 x 10-65.40 Carbonic (1) H2CO3HCO3-4.3 x 10-76.37 Sulfurous (2) HSO4-SO42-1.02 x 10-76.91 Arsenic (2) H2AsO4-HAsO42-8/9.3 x 10-87.10/7.03 Hydrosulfuric H2S HS-1.0 x 10-7/9.1 x 10-87/7.04 Phosphoric (2) H2PO4-HPO42-6.23 x 10-87.21 Hypochlorous HClO ClO-3.5/3.0 x 10-87.46/7.53 Hypobromous HBrO BrO-2 x 10-98.70 Hydrocyanic HCN CN-6.17 x 10-109.21 Boric (1) H3BO3H2BO3-5.8 x 10-109.23 Ammonium ion NH4+NH35.6 x 10-109.25 Phenol C6H5OH C6H5O-1.6 x 10-109.80 Carbonic (2) HCO3-CO32-4.8 x 10-1110.32 Hypoiodous HIO IO-2 x 10-1110.70 Arsenic (3) HAsO42-AsO43-6.0 x 10-10/3.0 x 10-129.22/11.53 Hydrogen peroxide H2O2HO2-2.4 x 10-1211.62 Ascorbic (2) HC6H6O6-C6H6O62-1.6 x 10-1211.80 Phosphoric (3) HPO42-PO43-4.8/2.2 x 10-1312.32/12.66 Water H2O OH-1.0 x 10-1414.0 Group I metal hydroxides (LiOH, NaOH, etc.) 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


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