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Concentration Units Molarity Molality Mole Fraction Weight Percent ppm ppb.

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Presentation on theme: "Concentration Units Molarity Molality Mole Fraction Weight Percent ppm ppb."— Presentation transcript:

1 Concentration Units Molarity Molality Mole Fraction Weight Percent ppm ppb

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

4 Distillation: Changing the composition of a mixture of volatile liquids Vapor Pressures at 50 o C Water99 mm Hg Ethanol232 mmHg Distill a 10% alcohol solution.

5 Boiling Point Elevation

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7 Freezing Point Depression

8 ? 1.A 2.B 3.C 4.D

9 Which is better at melting ice, per gram, NaCl or CaCl 2 ?

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