sample of AP chemistry choice
Directions: Each set of lettered choices below refers to the numbered questions or statements immediately following it.Selet the one lettered choice that best answers each question or best fits statement and fill in the corresponding oval on the answer sheet. A choice may be used once, more than once, or not at all in each set. Questions 1-4 refer to the following solution. (A) A solution with a pH of 1 (B) A solution with a pH of greater than 1 and less than 7 (C) A solution with a pH of 7 (D) A solution with a pH of greater than 7 and less than 13 (E) A solution with a pH of 13 For CH3COOH, Ka = 1.8?10-5 For NH3, Kb = 1.8?10-5 1. A solution prepared by mixing equal volumes of 0.2-molar HCl and 0.2-molar NH3