lecture31_chem110_sas - Colligative Properties Prepare for...

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Colligative Properties CH110 FA11 SAS 1 Exam 3: Monday November 7 th Prepare for Recitation November 10 th ALEKS Objective 11 due November 5 th ANGEL Quiz 11, November 6 th Note the special due dates! Lecture 31: November 2 nd Lecture 32: November 4 th Lecture 33: November 7 th (Review for Exam) Read: Ch. 13.5,13.6 Additional Preparation: BLB 13 : 9,58,61,69,75; Packet 13 : 13-18
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CH110 FA11 SAS 2 By the end of Today’s Lecture you should know: Vapor pressure lowering Boiling point elevation Freezing point depression Osmotic pressure KEY QUESTIONS: THE BIG PICTURE Colligative Properties How do you determine the total solute concentration in a solution? What forces drive the dissolution process? How do the properties of solutions differ from the properties of pure solvents? Remember: macroscopic properties come from microscopic origins How does the change in vapor pressure as a function of solute concentration influence the freezing and boiling points of solutions? What is the relationship between vapor pressure and osmotic pressure?
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Colligative? CH110 FA11 SAS 3 What determines Colligative Properties? 1) 2) Colligative Properties Affect: • Vapor pressure (Lowering) • Boiling point (Elevation) • Freezing point (Depression) • Osmotic pressure (next time…) Colligative:
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Number of Solute Particles CH110 FA11 SAS 4 How many particles are in solution? 0.5 m (molal) solution of Pb(NO
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This note was uploaded on 01/18/2012 for the course CHEM 110 taught by Professor Hofmann,brucerob during the Fall '08 term at Pennsylvania State University, University Park.

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lecture31_chem110_sas - Colligative Properties Prepare for...

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