TEACHER GUIDE AND ANSWERS Study Guide - Chapter 14 – Mixtures and 13. 85 mL H2O 1 L/1000 0.085 L H2O Solutions 7.54 g FeCl2 1 mol FeCl2/126.75 g FeCl2 Section 14.1 Heterogeneous and Homogeneous 0.0595 mol FeCl2 Mixtures Molarity moles of solute/liters of solution 1. false 0.0595 mol FeCl /0.0850 L H O 2. true 2 2 3. false Molarity 0.700 mol FeCl2/L H2O 0.700M FeCl2(aq) 4. true 5. true Section 14.3 Solvation and Solubility 6. false 1. solution 7. true 2. solute 8. true 3. solvent 9. false 4. soluble 10. true 5. insoluble 6. Liquid Characteristics of Particles Colloid Solution Suspension 7. miscible 8. immiscible 11. Less than 1 nm in 9. Solvation is the process of surrounding solute diameter particles with solvent particles to form a solution. 12. Between 1 nm and 1000 nm 10. The sodium and chloride ions are separated and in diameter surrounded by the water molecules. 13. More than 1000 nm in 11. Because the sodium ion is positively charged, it diameter attracts the negatively charged portion of the water 14. Settle out if undisturbed molecule (the oxygen atom) and repels the positively 15. Pass through standard charged portion of the water molecule (the hydrogen filter paper atoms). Because the chloride ion is negatively 16. Lower vapor pressure charged, it attracts the positively charged portion of 17. Scatter light the water molecule and repels the negatively charged portion. Section 14.2 Solution Concentration 12. The attraction between the water molecules and the 1. a sodium and chloride ions is greater than the attraction between the sodium and chloride ions. The greater d 2. strength of attraction between the water molecules 3. c and the ions is what causes the solvation process to 4. d occur. 5. 7.54 g 13. stirring or shaking the solution, breaking the solute 6. 85.0 mL into smaller pieces, and heating the solvent 14. true 7. Molarity moles of solute/liters of solution 15. false 8. mole 16. false 9. liter 17. true 85.0 mL 1L/ 1000 mL 10. 18. true 11. the molar mass of FeCl2 19. true 12. 7.54 g FeCl2 1 mol FeCl2/126.75 g FeCl2 Chemistry: Matter and Change 7 Teacher Guide and Answers TEACHER GUIDE AND ANSWERS Section 14.4 Colligative Properties of Solutions 1. boiling point and freezing point 2. Colligative properties depend on the number of electrolytes in solution. 3. Colligative properties are independent of the type of electrolytes in solution. 4. d 5. b 6. f 7. e 8. c 9. g 10. a Chemistry: Matter and Change 8 Teacher Guide and Answers .