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Part 2: External Control of Solubility Temperature and Pressure

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Presentation on theme: "Part 2: External Control of Solubility Temperature and Pressure"— Presentation transcript:

1 Part 2: External Control of Solubility Temperature and Pressure
Predictions: Will solubility increase or decrease with increasing temperature? Will solubility of a gas increase or decrease with increasing pressure?

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4 Concentration Units Molarity Molality Mole Fraction Weight Percent ppm
ppb

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6 Colligative Propeties: Properties of the solvent that change upon dissolution
Vapor Pressure of water at 20 oC is 20.1 mm Hg. What is the pressure of 100 g water mixed with 100 g ethylene glycol?

7 Distillation: Changing the composition of a mixture of volatile liquids
Vapor Pressures at 50 oC Water 99 mm Hg Ethanol 232 mmHg Distill a 10% alcohol solution.

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9 Boiling Point Elevation

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11 Freezing Point Depression

12 Effect of Ions

13 Which is better at melting ice, per gram, NaCl or CaCl2?

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