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Nature of Acids and Bases

Nature of Acids and Bases. A 0.100M Latic acid solution is 3.7% ionized. Find K a of this acid. Nature of Acids and Bases. Calculate the pH of a 5.0E-2M NaOH solution. Nature of Acids and Bases. B (aq) + H 2 O (l)  BH + (aq) + OH -1 (aq) Conj acid Conj base .

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Nature of Acids and Bases

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  1. Nature of Acids and Bases A 0.100M Latic acid solution is 3.7% ionized. Find Ka of this acid.

  2. Nature of Acids and Bases • Calculate the pH of a 5.0E-2M NaOH solution.

  3. Nature of Acids and Bases • B(aq) + H2O(l) BH+(aq) + OH-1(aq) Conj acid Conj base

  4. Nature of Acids and Bases • Ka * Kb = Kw (Always!!!)

  5. Nature of Acids and Bases • Calculate the pH for a 15.0M solution of NH3. Kb = 1.8E-5

  6. Nature of Acids and Bases • Calculate the pH of a 5.0M H3PO4 solution and the equilibrium concentrations of the species: H3PO4, H2PO4-1 HPO4-2 and PO43- Ka next slide

  7. Nature of Acids and Bases • Ka1 = 7.5E –3 • Ka2 = 6.2E-8 • Ka3 4.8 E -13

  8. Nature of Acids and Bases • Calculate the pH of a 1.0M Sulfuric Acid solution • H+ HSO4-1 H2O Major Species

  9. Nature of Acids and Bases • Calculate the pH of a 1.00E-2 Sulfuric acid solution.

  10. Nature of Acids and Bases Acid-Base properties of salts: Salts that produce bases: Formed from strong base and weak acid. Salts that produce acids: ???

  11. Nature of Acids and Bases • Calculate the pH of a 0.30M NaF solution. Ka of HF is 7.2E-4.

  12. Nature of Acids and Bases • Calculate the pH of a 0.10M NH4Cl solution. The Kb value for NH3 is 1.8E-5.

  13. Nature of Acids and Bases • Acid, Base or Neutral NH4C2H3O2 NH4CN Salts of weak/weak depend on Ka and Kb

  14. Nature of Acids and Bases Lewis Acid: Electron acceptor Lewis Base: Electron donor

  15. Nature of Acids and Bases H+ + :NH3 HNH3+  NH4+ Acid Base H+ + [OH-1]  H-OH Acid Base F3B + :NH3  F3BNH3 Acid Base

  16. Nature of Acids and Bases • Homework: Page 702- # 81, 85, 89, 93, 103, 104,107, 109, 113, 121, 122

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