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2. In a buffer solution in which (HA) = 1A ), the .... a. pH = 1 b. pH = POH pH = pk d. pH = Kg 3. How will the addition of sodium acetate affect the pH of a HC2H302 solution a. the pH will not change c. raises the pH b. the pH cannot be measured d. lower the pH 4. A solution of hydrochloric acid (HCI, 25.00 mL) was titrated to completion w 0.1020 M sodium hydroxide. What was the concentration of the hydrochloric acic a. 0.07048 M b. 0.0353 M 0.1410 M d. 5. Which structure is the Lewis base? H-c=cr 0.025M = 0.001 Ou3 0.025 (M.)-(00345 methanol acetylide a, acetylide b. methanol c. both acetylide and methanol d. neither acetylide not methanol 6. The following titration curve is most likely to be associated with r PH Volume of titrant a. the titration of a strong base with a strong acid titrant. b. the titration of a weak acid with a strong base titrant. c. the titration of a strong base with a weak acid titrant. d. the titration of a weak base with a strong acid titrant. e. the titration of a weak base with a weak acid titrant. 7. What happens halfway to the equivalence point in a titration curve of a we base? a. nothing happens yet. b. the pH = pk of the weak acid. c. pH = pk of the indicator. d. the pH has not yet changed. e. pH = 3.5 exactly.