| Osmosis |
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| • | Certain materials
allow passage of |
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| molecules of a
certain size through but not |
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| bigger molecules.
These are called |
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| __________________ membranes. |
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| • | When have pure
solvent and a solution |
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| separated by a
semipermeable membrane |
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| (or 2 solutions
of different concentrations), |
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| “nature” wants
the concentrations in the 2 |
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| sides to be the
same. |
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