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51. ChemTeam: AP Free Response - 1971

Advanced Placement Chemistry 1971 Free Response Questions Notes No answers yet. this test has been reconstructed and may not be complete as well as the questions not being in original order. 1) At 20 °C the vapor pressure of benzene is 75 torr, and the vapor pressure of toluene is 22 torr....
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp71.html - 8KB - 03 Sep 2010

52. ChemTeam: AP Free Response - 1970

Advanced Placement Chemistry 1970 Free Response Questions Notes No answers yet. this test has been reconstructed and may not be complete as well as the questions not being in original order. 1) (a) What is the pH of a 2.0 molar solution of acetic acid. K a of acetic acid 1.8 x 10¯ 5 (b) A...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp70.html - 8KB - 03 Sep 2010

53. ChemTeam: AP Free Response - 1982

Advanced Placement Chemistry 1982 Free Response Questions Go to answers 1) A buffer solution contains 0.40 mole of formic acid, HCOOH, and 0.60 mole of sodium formate, HCOONa, in 1.00 liter of solution. The ionization constant, K a , of formic acid is 1.8 x 10¯ 4 (a) Calculate the pH of this...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp82.html - 8KB - 03 Sep 2010

54. ChemTeam: AP Free Response - 1986

Advanced Placement Chemistry 1986 Free Response Questions Go to the answers 1) In water, hydrazoic acid, HN 3 , is a weak acid that has an equilibrium constant, K a , equal to 2.8 x 10¯ 5 at 25 °C. A 0.300-liter sample of a 0.050-molar solution of the acid is prepared. (a) Write the...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp86.html - 8KB - 03 Sep 2010

55. ChemTeam: AP Free Response - 1972

Advanced Placement Chemistry 1972 Free Response Questions Notes No answers yet. this test has been reconstructed and may not be complete as well as the questions not being in original order. 1) 2 A + 2 B < > C + D The following data about the reaction above were obtained from three...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp72.html - 8KB - 03 Sep 2010

56. ChemTeam: AP Free Response - 1990

Advanced Placement Chemistry 1990 Free Response Questions Go to Answers 1) The solubility of iron(II) hydroxide, Fe(OH) 2 , is 1.43 x 10¯ 3 gram per liter at 25 °C. (a) Write a balanced equation for the solubility equilibrium. (b) Write the expression for the solubility product constant,...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp90.html - 8KB - 03 Sep 2010

57. ChemTeam: AP Free Response - 1991

Advanced Placement Chemistry 1991 Free Response Questions Go to Answers 1) The acid ionization constant, K a , for propanoic acid, C 2 H 5 COOH, is 1.3 x 10¯ 5 . (a) Calculate the hydrogen ion concentration, [H + ], in a 0.20-molar solution of propanoic acid. (b) Calculate the percentage of...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp91.html - 9KB - 03 Sep 2010

58. ChemTeam: AP Free Response - 1985

Advanced Placement Chemistry 1985 Free Response Questions Go to answers 1) At 25 °C the solubility product constant, K sp , for strontium sulfate, SrSO 4 , is 7.6 x 10¯ 7 . The solubility product constant for strontium fluoride, SrF 2 , is 7.9 x 10¯ 10 (a) What is the molar...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp85.html - 9KB - 03 Sep 2010

59. ChemTeam: AP Free Response - 1997

Advanced Placement Chemistry 1997 Free Response Questions Question 1 was question 4 prior to 1996, question 2 was question 1 prior to 1996 and questions 3&4 were questions 2&3 prior to 1996. students are allowed 10 minutes to answer question 1, after which they must seal that portion of the test....
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp97.html - 9KB - 03 Sep 2010

60. ChemTeam: AP Free Response - 1980

Advanced Placement Chemistry 1980 Free Response Questions Go to Answers 1) Methylamine, CH 3 NH 2 , is a weak base that ionizes in solution as shown by the following equation. CH 3 NH 2 + H 2 O < > CH 3 NH 3 + + OH¯ (a) At 25 °C, the percentage ionization in a 0.160-molar...
URL: http://www.jesuitnola.org/upload/clark/xmp/Free-Resp80.html - 9KB - 03 Sep 2010

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