Colligative Properties PowerPoint

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Molality• Example:A 0.5 mole solute is prepared in 1 Kg ofwater. What is the molality of thesolution?0.5 moles = 0.5 molal1 Kg of H 2 O
Molality• Example:What is the molality of a solutionprepared by dissolving 8.87 g ofmethanol CH 3 OH, in 20.0 g of water?Calculate the moles of solute (CH 3 OH)8.87 g = 0.277 mol32.04 g
Page 1 and 2: Colligative PropertiesThe Physical
Page 3: Molality• Molality measures the m
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 and 18: Freezing Solutions• Solutions typ
Page 19 and 20: Practical Applications• Antifreez
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

Colligative Properties PowerPoint

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