Learning and Understanding: Improving Advanced Study of Mathematics and Science in U.S. High Schools Report of the Content Panel for Chemistry (2002) / Chapter Skim
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Appendix D: Suggested Modifications of Examination Questions
Appendix D: Suggested Modifications of Examination Questions
Pages 46-54
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From page 46... ...
In particular cases below, the original question is given, followed by its suggested modification. AP CHEMIS - Y 1999, SECTION a, POT A, QUESTION ~ Original Question NH3(aq)
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From page 47... ...
AP CHEMISTRY 1999, SECTION II, PART A, QUESTION 2 Original Question Answer the following questions regarding light and its interactions with molecules, atoms, and ions.
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Suggested Modification A question containing some of the information assessed in the original version of Question 2 but considerably extended might look like this. This question row relates to a chlorofluorocarbon compound known as CFC-12 or Freon-12.
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carbonate is added to a 0.5 M sulfuric acid solution.
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AP CHEMISTRY 1999, SECTION II, PART B QUESTION 6 Original Question Answer the following questions in term of thermodynamic principles and concepts of kinetic molecular theory.
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AP CHEMISTRY 1999, SECTION II, PART B QllESTION 7 Original Question Answer the following questions, which refer to the 100 mL samples of aqueous solutions at 25°C in the stoppered flasks shown above (four partially full flasks are shown, each containing an equal volume of 0.10 M solutions of NaF, MgCl2, C2H5OH, and CH3COOH, respectively)
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From page 52... ...
These three items are examples of particulate representations linked to symbolic representations or macroscopic phenomena. Such questions are not part of the AP or IB examinations.
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(d) Mass citric acid in 1 mL fruit juice = (78.77 g citric acid/10.00 mL fruit juice)
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From page 54... ...
The chemicals available for your use are: 1M solutions of acetic acid, ammonium acetate, ammonium chloride, aqueous ammonia, hydrochloric acid, sodium acetate, and sodium hydroxide (acetic acid Ka = 1.S x 10-5 and ammonia Kb= 1.8 x 10-51.
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