1. General Chemistry Principles & Modern Applications 9 th Edition Petrucci/Harwood/Herring/Madura Chapter 16 Acids and Bases Dr. Travis D. Fridgen Memorial University of Newfoundland © 2007 Pearson Education

2. Which of the following are the best examples of Lewis bases? A) D) C) B) 1. B only. 3. C and D only. 4. A, C and D only. 5. None of these are Lewis bases. 2. C only.

3. Which of the following are the best examples of Lewis bases? A) D) C) B) 1. B only. 3. C and D only. 4. A, C and D only. 5. None of these are Lewis bases. 2. C only.

4. + The reaction depicted to the right is best denoted as 1. a Br  nsted-Lowry acid-base reaction. 2. an Arrhenius acid-base reaction. 3. a Lewis acid-base reaction. 4. a redox reaction. 5. None of the above are correct.

5. + The reaction depicted to the right is best denoted as 1. a Br  nsted-Lowry acid-base reaction. 2. an Arrhenius acid-base reaction. 3. a Lewis acid-base reaction. 4. a redox reaction. 5. None of the above are correct.

6. The following reaction is best denoted as 1. a Br  nsted-Lowry acid-base reaction. 2. an Arrhenius acid-base reaction. 3. a Lewis acid-base reaction. 4. Both 1 and 2. 5. Both 2 and 3.

7. The following reaction is best denoted as 1. a Br  nsted-Lowry acid-base reaction. 2. an Arrhenius acid-base reaction. 3. a Lewis acid-base reaction. 4. Both 1 and 2. 5. Both 2 and 3.

8. -- ++ In the reaction depicted below, which species are acids?

9. -- ++

10. A 0.10 M aqueous solutions of which of the following compounds is most basic? 1. NaNO 3 2. H 2 SO 4 3. NH 4 Cl 4. NH 3 5. NaOH

11. A 0.10 M aqueous solutions of which of the following compounds is most basic? 1. NaNO 3 2. H 2 SO 4 3. NH 4 Cl 4. NH 3 5. NaOH

12. Which of the following solutions has the highest concentration of hydroxide ion? 1.2.3.

13. Which of the following solutions has the highest concentration of hydroxide ion? 1.2.3.

14. A 0.10 M aqueous solutions of which of the following compounds do you think is the most acidic? 1. HCl 2. H 2 SO 4 3. NH 4 Cl 4. HClO 4 5. H 2 CO 3

15. 1. HCl 2. H 2 SO 4 3. NH 4 Cl 4. HClO 4 5. H 2 CO 3 A 0.10 M aqueous solutions of which of the following compounds do you think is the most acidic?

16. The pH values for solutions with H 3 O + concentrations of 1.0x10 -1, 1.0x10 -4, and 1.0x10 -9 are, (no calculators) 1. 14.0, 12.0, 9.0 2. 13.0, 9.0, 5.0 4. 1.00, 4.00, 9.00 3. 13.00, 9.00, 5.00 5. 1.0, 4.0, 9.0

17. The pH values for solutions with H 3 O + concentrations of 1.0x10 -1, 1.0x10 -4, and 1.0x10 -9 are, (no calculators) 1. 14.0, 12.0, 9.0 2. 13.0, 9.0, 5.0 4. 1.00, 4.00, 9.00 3. 13.00, 9.00, 5.00 5. 1.0, 4.0, 9.0

18. Which of the following is closest to the concentration of H 3 O + for the solution depicted to the right (pH=8.98). Do not use a calculator. 1. 10 9 M 3. 10 8 M 2. 10 8.98 M 4. 10 -8 M 5. 10 -9 M

19. Which of the following is closest to the concentration of H 3 O + for the solution depicted to the right (pH=8.98). Do not use a calculator. 1. 10 9 M 3. 10 8 M 2. 10 8.98 M 4. 10 -8 M 5. 10 -9 M

20. What is the equilibrium constant for, Given,

21. What is the equilibrium constant for, Given,

22. What is the equilibrium constant for, (no calculators) Given,

23. What is the equilibrium constant for, (no calculators) Given,

24. Given the K a values to the right for H 2 S and H 2 SO 3 which of the following compounds do you think would be most basic at equal concentrations? K a,1 = 1.0x10 -7 K a,2 = 1x10 -19 K a,1 = 1.3x10 -2 K a,2 = 1x10 -8 1. H 2 S 2. NaHS 3. NaHSO 3 4. Na 2 SO 3 5. H 2 SO 3

25. Given the K a values to the right for H 2 S and H 2 SO 3 which of the following compounds do you think would be most basic at equal concentrations? K a,1 = 1.0x10 -7 K a,2 = 1x10 -19 K a,1 = 1.3x10 -2 K a,2 = 1x10 -8 1. H 2 S 2. NaHS 3. NaHSO 3 4. Na 2 SO 3 5. H 2 SO 3

26. Solutions of NaCl, NaNO 3, and Na 3 PO 4 will be 1. neutral, basic and acidic, respectively. 2. acidic, neutral and basic, respectively. 3. acidic, basic and basic, respectively. 4. neutral, neutral and basic, respectively. 5. neutral, neutral and acidic, respectively.

27. Solutions of NaCl, NaNO 3, and Na 3 PO 4 will be 1. neutral, basic and acidic, respectively. 2. acidic, neutral and basic, respectively. 3. acidic, basic and basic, respectively. 4. neutral, neutral and basic, respectively. 5. neutral, neutral and acidic, respectively.

28. Which compound do you expect to be most acidic? 1.2.3.4.5.

29. Which compound do you expect to be most acidic? 1.2.3.4.5.

30. Which of the following oxoacids would you expect to be the most acidic? 1.2. 4.3.5.

31. Which of the following oxoacids would you expect to be the most acidic? 1.2. 4.3.5.

32. Which of the following would you expect to be the most basic amine? 1.2.3.4.

33. Which of the following would you expect to be the most basic amine? 1.2.3.4.

34. For HClO 4 (all values in kJ mol -1 ) BE = 430, EA(ClO 4 - ) = 515, IE(H) = 1312, and the hydration energies for H + and ClO 4 - are -1130 and -238, respectively. Calculate  H acid. Do not enter values greater than 500 or less than -500!!

35. K a,1 = 7.5x10 -3 K a,2 = 6.2x10 -8 K a,3 = 2.14x10 -13 K a,1 = 1.5x10 -3 K a,2 = 2.0x10 -6 Morphine is a weak base with K b = 7.4 x 10 -7. Which of the following is the strongest base? 1.morphine 2.NaH 2 PO 4 3.Na 2 HPO 4 4.NaHC 3 H 2 O 4 5.Na 2 C 3 H 2 O 4

36. pK a,1 = 2.64 pK a,2 = 10.80 pK a,1 = 3.13 pK a,2 = 4.76 pK a,3 = 6.40 Codein is a weak base with pK b = 6.05. Using this and the data to the right determine which of the following is the weakest base? 1.codein 2.NaHTe 3.Na 2 Te 4.NaH 2 C 6 H 5 O 7 5.Na 2 HC 6 H 5 O 7