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Drill: Calculate the pH of: 3.0 x 10 -5 M H + 2.0 x 10 -4 M HI

Drill: Calculate the pH of: 3.0 x 10 -5 M H + 2.0 x 10 -4 M HI. Review Drill & Check HW. CHM II HW. Review PP-22 Complete the attached assignment & turn it in tomorrow. Are there any questions on previous material?. Get Data From The Standard Solution Lab. Acid-Base Equilibria.

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Drill: Calculate the pH of: 3.0 x 10 -5 M H + 2.0 x 10 -4 M HI

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  1. Drill: Calculate the pH of: 3.0 x 10-5 M H+ 2.0 x 10-4 M HI

  2. Review Drill&Check HW

  3. CHM II HW • Review PP-22 • Complete the attached assignment & turn it in tomorrow.

  4. Are there any questions on previous material?

  5. Get Data From The Standard Solution Lab

  6. Acid-Base Equilibria

  7. Ionization of Water H2O(l) H+(aq)+ OH-(aq) 2 H2O(l) H3O+(aq) + OH-(aq)

  8. Water Ionization Constant Kw = [H+][OH-] or Kw = [H3O+][OH-] Kw = 1.00 x 10-14 Memorize this

  9. Kw Calculations In pure water [H+] = [OH-] Kw =[H+][OH-] = 1.0 x 10-14 Let [H+] = x = [OH-]

  10. Kw Calculations Kw =[H+][OH-] = x2 Kw = x2 =1.0 x 10-14 Thus x = 1.0 x 10-7 M [H+] = x = 1.0 x 10-7 M

  11. pH of Pure Water [H+] = 1.0 x 10-7 M pH = -log[H+] pH = -log[1.0 x 10-7] pH = 7 -log 1 Thus pH = 7.00

  12. Calculate the pH of 3.3 x 10-8 M HI

  13. Calculate [H+],[OH-], pH, & pOH of 0.020 M HCl

  14. Calculate [H+] of 0.050 M H2SO4

  15. Weak Acid Ionization HA(aq) H+(aq) + A-(aq) HA(aq) + H2O(l) H3O+(aq) + A-(aq)

  16. Acid Dissociation Constant HA(aq)H+(aq) + A-(aq) • [H+][A-] • [HA] Ka =

  17. Weak Base Ionization NH3(aq) + H2O(l) NH4+(aq) + OH-(aq)

  18. Base Dissociation Constant NH3(aq) + H2O(l) NH4+(aq) + OH-(aq) • [NH4+][OH-] • [NH3] Kb =

  19. Drill: Calculate [H+],[OH-], pH, & pOH of 0.025 M KOH

  20. Review & Collect Drill & HW

  21. CHM II HW • Review PP-22 • Complete the attached assignment & turn it in tomorrow.

  22. Make sure you copy the Std KHP molarities

  23. Are there any questions on previous material?

  24. Acid-Base Equilibria Problems

  25. Calculate [H+], [OH-], pH, & pOH of 8.0 M HC2H3O2 (HAc)Ka = 1.8 x 10-5

  26. Calculate [H+], [OH-], pH, & pOH of0.50 M NH3Kb = 1.8 x 10-5

  27. Calculate [H+],[OH-], pH, & pOH of 0.010 M HC7H5O2 (HBz)Ka = 6.4 x 10-5

  28. Drill: Calculate [H+] & pH of 0.50 M C6H5NH2Kb = 3.2 x 10-5

  29. Drill: Calculate [H+] & pH of 0.50 M NaOH

  30. Review Drill&Check HW

  31. Collect Lab

  32. CHM II HW • Review PP-22 • Complete the attached assignment & turn it in tomorrow.

  33. Are there any questions on previous material?

  34. Calculate the Ka of 0.10 M Hquack when it ionized 5.0 % in an aqueous solution.

  35. The pH of a 0.79 M solution of Hnut is 3.10. Calculate its Ka

  36. Calculate the pH of a solution of 0.00050 M HBS : Ka = 5.0 x 10-12

  37. Drill: Calculate the pH of0.025 M HF:Ka = 6.4 x 10-4

  38. Drill: Calculatethe pH of 0.025 M QOH:Kb = 2.0 x 10-4

  39. You have 10 identical coins with 1 coin having a slight mass difference. Determine the odd coin with only 3 uses of an equal arm balance.

  40. Drill: Calculate the pH of 0.25 M HAz Ka = 2.5 x 10-3

  41. Review Drill&Check HW

  42. CHM II HW • Review PP-22 • Complete the attached problem & turn it in tomorrow.

  43. CHM II Schedule • Lab Tomorrow • Review on Wednesday • Test on Thursday • Labs attached

  44. Are there any questions on previous material?

  45. PolyproticAcidEquilibria

  46. Calculate [H2CO3], [HCO3-], [CO3-2], [H+],[OH-], & pH of 0.44 M H2CO3Ka1 = 4.4 x 10-7Ka2 = 4.7 x 10-11

  47. Drill: Calculate the pH of 0.25 M HAz Ka = 2.5 x 10-3

  48. Review & Collect Drill

  49. Schedule • Lab: tomorrow • Lab Wednesday • Review Thursday

  50. CHM II Test covering A/B & A/B Equilibria will be on Friday

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