b. CH3CH2CH3 < CH3CH2OH < 17. a high normal boiling point CH3CH2OCH3 < CH3CH2CH2OH a. True b. False c. CH3CH2CH3 < CH3CH2OCH3 < CH3CH2OH < CH3CH2CH2OH 18. a high surface tension a. True d. CH3CH2CH3 < CH3CH2OH < b. False CH3CH2CH2OH < CH3CH2OCH3 19. A beaker has 300mL of C4H10 (l) and For questions 10 through 13, assume the 600mL of C6H10 (l). Which of the following following molecules are in a closed container. best describes what is in the beaker? Which would you predict which will have the highest vapor pressure? A solution is formed because the two liquids are immiscible; C6H10 is the 10. HF or HBr solute and C4H10 is the solvent. a. HF b. HBr A solution is formed because the two liquids are miscible; C4H10 is 11. F2, or I2 the solute and C6H10 is the solvent. a. F2 b. I2 A solution is formed because the two liquids are immiscible; C4H10 is the 12. PH3, or CO2, solute and C6H10 is the solvent. a. PH3 b. CO2 A solution is formed because the two liquids are miscible; C6H10 is the 13. C4H10, or C8H18, solute and C4H10 is the solvent. a. C4H10 b. C8H18 A heterogeneous mixture is formed 14. Freezing has a because the two liquids are miscible. -H A heterogeneous mixture is formed +H because the two liquids are immiscible. 15. Deposition has a -H +H For the following 3 questions, answer with Are the following 4 questions true or false? true or false. A liquid with strong intermolecular forces will have 20. Condensation is endothermic …. a. True 16. a low b. False ΔHvap a. True b. False 21. Sublimation is the conversion of a solid to a gas
b. CH3CH2CH3 < CH3CH2OH < CH3CH2OCH3 < CH3CH2CH2OH c. CH3CH2CH3 < CH3CH2OCH3 < CH3CH2OH < CH3CH2CH2OH d. CH3CH2CH3 < CH3CH2OH < CH3CH2CH2OH < CH3CH2OCH3 For questions 10 through 13, assume the following molecules are in a closed container. Which would you predict which will have the highest vapor pressure? 10. HF or HBr a. HF b. HBr 11. F2, or I2 a. F2 b. I2 12. PH3, or CO2, a. PH3 b. CO2 13. C4H10, or C8H18, a. C4H10 b. C8H18 14. Freezing has a -H +H 15. Deposition has a -H +H For the following 3 questions, answer with true or false. A liquid with strong intermolecular forces will have …. 16. a low ΔHvap a. True b. False 17. a high normal boiling point a. True b. False 18. a high surface tension a. True b. False 19. A beaker has 300mL of C4H10 (l) and 600mL of C6H10 (l). Which of the following best describes what is in the beaker? A solution is formed because the two liquids are immiscible; C6H10 is the solute and C4H10 is the solvent. A solution is formed because the two liquids are miscible; C4H10 is the solute and C6H10 is the solvent. A solution is formed because the two liquids are immiscible; C4H10 is the solute and C6H10 is the solvent. A solution is formed because the two liquids are miscible; C6H10 is the solute and C4H10 is the solvent. A heterogeneous mixture is formed because the two liquids are miscible. A heterogeneous mixture is formed because the two liquids are immiscible. Are the following 4 questions true or false? 20. Condensation is endothermic a. True b. False 21. Sublimation is the conversion of a solid to a gas
half_mock_exam_s18_key.docx