An organic acid has pK a = 8.95. What is its K a value? Where does the
Question:
An organic acid has pKa = 8.95. What is its Ka value? Where does the acid fit in Table 16.2?
Data given in Table 16.2
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Increasing Acid Strength TABLE 16.2 Acid Name Perchloric acid Sulfuric acid Hydrochloric acid Nitric acid Ionization Constants for Some Acids and Their Conjugate Bases at 25 °C K₂ Large Large Large Large 1.0 1.2 x 10-2 1.2 x 10-2 7.5 x 10-3 6.3 x 10-³ 7.2 x 10-4 4.5 x 10-4 1.8 x 10-4 Hydronium ion Sulfurous acid Hydrogen sulfate ion Phosphoric acid Hexaaquairon (III) ion Hydrofluoric acid Nitrous acid Formic acid Benzoic acid Acetic acid Propanoic acid Hexaaquaaluminum ion Carbonic acid Hexaaquacopper(11) ion Acid HCIO4 H₂SO4 HCI HNO3 H₂O+ H₂SO3 HSOA™ H3PO4 [Fe(H₂O)]³+ HF HNO₂ HCO₂H C6H5CO₂H 6.3 x 10-5 CH3CO,H 1.8 × 10-5 CHỊCH,COH | _ 1.3 × 10-5 [AI(H₂O)]³+ 7.9 x 10-6 H₂CO3 4.2 x 10-7 [Cu(H₂0)]²+ 1.6 x 10-7 1 x 10-7 Hydrogen sulfide H₂S Dihydrogen phosphate ion H₂PO4 Hydrogen sulfite ion HSO3 Hypochlorous acid HCIO Base CIO4 HSO4 CI- NO3 H₂O HSO3 SO4²- H₂PO4 [Fe(H₂O)50OH]²+ F- NO₂™ HCO₂ C6H5CO₂ CH3CO, CHỊCH,CO, [AI(H₂O)5OH]²+ HCO3 [Cu(H₂0); OH]+ HS- 6.2 x 10-8 HPO4²- 6.2 x 10-8 SO3²- 3.5 x 10-8 CIO K₂ Very small Very small Very small Very small 1.0 x 10-14 8.3 x 10-13 8.3 x 10-13 1.3 x 10-12 1.6 x 10-12 1.4 x 10-11 2.2 x 10-¹¹ 5.6 x 10-¹1 1.6 x 10-10 5.6 x 10-10 7.7 x 10-10 1.3 x 10-⁹ 2.4 x 10-8 6.3 x 10-8 1 x 10-7 1.6 x 10-7 1.6 x 10-7 2.9 x 10-7 Base Name Perchlorate ion Hydrogen sulfate ion Chloride ion Nitrate ion Water Hydrogen sulfite ion Sulfate ion Dihydrogen phosphate ion Pentaaquahydroxoiron(III) ion Fluoride ion Nitrite ion Formate ion Benzoate ion Acetate ion Propanoate ion Pentaaquahydroxoaluminum ion Hydrogen carbonate ion Pentaaquahydroxocopper(11) ion Hydrogen sulfide ion Hydrogen phosphate ion Sulfite ion Hypochlorite ion Increasing Base Strength
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Related Book For
Chemistry And Chemical Reactivity
ISBN: 9780357001172
10th Edition
Authors: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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