1. Which of the following is NOT a valid definition of an acid?

2. Which of the following is a Bronsted base?

3. One major difference between the Bronsted-Lowry and the Arrhenius definitions of acids and bases is which of the following?

4. The Ka for hypochlorous acid does not contain which of the following terms?

5. If the Ka of sulfurous acid is 1.54 x 10-2, what is the Kb of its conjugate base?

6. What is the value of Kw at 333 K?

7. What is the Ka of a 0.320 M solution of nitrous acid? Nitrous acid has a pKa of 3.34.

8. What is the pOH of a 0.350 M solution of Nitric Acid?

9. What is the pKb of an acid with a Ka of 6.20 x 10-4?

10. If the pOH of a solution is 6, what is the pH?

11. What is pH?

12. Which of the following is true?

13. Which of the following has the most impact on the acidity of a halogen acid, HX?

14. Which of the following contributes to an increase in pKa for an oxyacid of the type A(OH)nOm?

15. Which of the following is the weakest acid?

16. What is the [H+] in a 0.1 M solution of Nitric Acid into which 0.2 moles per liter of HCl is dissolved?

17. What is the pH of a solution of 0.50 moles of nitric acid and 1.0 mole of sulfuric acid dissolved into 2.0 L of water?

18. Why can we equate the [H+] and the [strong acid]?

19. Why is Ba(OH)2 not a strong base whereas other alkaline earth metal hydroxides are?

20. What is the pH of a 0.520 M solution of NaOH?

21. What happens to the pH of a solution of NaOH when BaSO4 is added?

22. What is the pH of a 1.10 M solution of hydrazoic acid? HN3 has a pKa of 4.72.

23. What is the percent dissociation of a 0.010 M solution of acetic acid? The Ka of acetic acid is 1.76 x 10-5.

24. What is the pH of 2 L of a 1.0 M HF solution to which 42 g of NaF are added, causing no net change in volume? The Ka of HF is 6.6 x 10-4.

25. What is the pKa of a monoprotic weak acid that gives a pH of 6.2 when you prepare a 0.56 M solution of that acid?

26. What is the pH of a 0.230 M solution of NH3? The pKb of NH3 is 4.75.

27. How much pyridine (C5H5N) is needed to raise the pH of 500 mL of water by 2 units? The pKa of the pyridinium ion is 5.25.

28. What is the pOH of a mixture of 5 g of Ba(OH)2 in 100 mL of water given its Kspis 5.0 x 10-3.

29. What is the pH of a 1.0 M solution of NaCl in water?

30. When a weak base dissolves in water to form a 1.0 M solution, it gives a pH of 9.0. What is the pKa of its conjugate acid?

31. What is the pH of a 0.25 M solution of NaOAc (sodium acetate) in water if the pKa of AcOH (acetic acid) is 4.75?

32. What is the pH of a 3.60 M solution of ammonium chloride (NH4+Cl) in water if the pKb of ammonia is 4.75?

33. Which of the following is a characteristic of a polyprotic acid?

34. What is the pH of a 3.0 M solution of phosphoric acid in water? pKa1 is 2.12, pKa2 is 7.21, and pKa3 is 12.67.

35. What is the pH of a 0.10 M solution of sodium hydrogensulfate? For sulfuric acid, pKa1 is -2, pKa2 is 1.92.

36. What condition must be satisfied to make a good buffer?

37. Which of the following is the Henderson-Hasselbalch equation?

38. What is the pH of an equimolar mixture of acetic acid and sodium acetate? The Ka of acetic acid is 1.76 x 10-5.

39. What is the pH of a solution of 5.00 g acetic acid, 7.00 g sodium acetate, and 2.00 g HCl in 200 mL of water?

40. If the pH of a solution you wish to control using a buffer is 8.0, which of the following buffer compositions would you prefer?

41. On a titration curve, at what point does the titrant exactly neutralize the unknown?

42. How much HCl should be added to 500 mL of a 1.0 M NaOH solution achieve the highest pH on a titration curve?

43. Which of the following is required to measure the pH of the unknown solution during a titration?

44. What is the pH at the equivalence point for a titration of a strong acid by a strong base?

45. While performing the titration of a weak acid by a strong base, Annie Oaf and Peter Fool became discouraged when they reached a pH of 4 and noticed that it takes a large amount of base to change the pH significantly. They figured that they had "messed up" and needed to start over. What feature of the titration curve fooled them?

46. What will be the pH at the equivalence point for a weak base being titrated with a strong acid?

47. What is the molecular weight of a weak acid solution (5.0 g in 100 mL) that is neutralized by 50 mL of a 1.0 M NaOH solution?

48. What volume of 1.016 M NaOH is required to completely titrate 45.00 mL of a 0.6532 M H2SO4 solution?

49. What property of an indicator is essential for its function?

50. What is the difference between the equivalence point and the endpoint of a titration?

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