Concentration Units

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Concentration Units
Molarity Molality Mole Fraction Weight
Percent ppm ppb
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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?
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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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Boiling Point Elevation
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Freezing Point Depression
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?

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

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