1. AP C HEMISTRY T UTORIALS –03 C HP 01-05: AP Q UESTIONS Srinivasan G. Srivilliputhur January 06, 2015

2. Review: Experimental Methods 1 AP ExamplesAP Examples 2 Today’s Overview

3. Separating Mixtures: ReviewSeparating Mixtures: Review 2

4. Filtration: Immiscible substances Also used to separate precipitates from liquid

5. Flotation: Modified Filtration Skim the froth (e.g. chocolate floating)

6. Evaporation: E.g. Salt in Water Separate dissolved substance from solvent Evaporate the liquid to separate Salt Solution Distillate (water)

7. Distillation: E.g. Salt in Water (Fractional) distillation is best to separate a solution of miscible liquids (liquids that dissolve in each other) Principle: Uses the differences in boiling points of liquids The column has beads to help the rising gas to slowly condense and re-evaporate many times, before collecting distillate

8. AP Chemistry ExamplesAP Chemistry Examples 1

9. 2002 AP Chemistry

14. 2002 AP Chemistry: Answers (19) E(20) E (26) B(28) E (29) C(31) A (32) B(38) D (40) D(43) D (45) A(50) C (51) B(52) B (58) A(59) B