Colligative Properties PowerPoint

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Freezing Solutions• A good example of a“frozen solution” is apopsicle.• What happens to apopsicle if you suckon it?• Right! A very sweetliquid comes out,and all you have leftis a tasteless stick ofwater ice.
Practical Applications• Antifreeze in your car’s radiator makesuse of a solution to both drop thefreezing and raise the boiling point.• Antifreeze is a solution of ethyleneglycol (an alcohol) and water.• It prevents the liquid in the coolingsystem from freezing and cracking theengine block.• It also prevents the liquidfrom boiling over whenthe engine is hot.
Page 1 and 2: Colligative PropertiesThe Physical
Page 3 and 4: Molality• Molality measures the m
Page 5 and 6: Molality• Example:What is the mol
Page 7 and 8: Molality• Determine the molality
Page 9 and 10: Molality• Convert grams of solven
Page 11 and 12: Changes in Vapor Pressure• Animat
Page 13 and 14: Solution Vapor Pressure• But what
Page 15 and 16: Boiling Point Elevation• There is
Page 17: Freezing Solutions• Solutions typ
Page 21 and 22: The van’t Hoff Factor• We have
Page 23 and 24: The van’t Hoff Factor• ΔT b =
Page 25 and 26: Heat of Solution• Most materials
Page 27 and 28: Endothermic Heat of SolutionNH 4 Cl
Page 29 and 30: Exothermic Heat of SolutionCaCl 2 (
Page 31 and 32: Calculating Heat Exchange• A simp
Page 33 and 34: Calculating Heat Exchange• The sp

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