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14 Cards in this Set
- Front
- Back
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The 4 Main Units of Concentration
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-Molarity (M)
-Mole Fraction (X) -Mass Percent (Mass %) -Molality (m) |
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Molarity
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Moles of Solute
------------------------ Liters of Solution |
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Mole Fraction
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Moles of Component
------------------------------- Total Moles of Solution |
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Mass Percent
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Mass of component
-------------------------------------- X 100% Total Mass of Solution |
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molality
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Moles of Solute
----------------------------- Mass of Solvent (kg) |
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Solubility
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The amount of a substance that dissolves in a given volume of solvent at a given temperature.
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Saturated Solution
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a solution containing the maximum possible amount of dissolved solute at equilibrium.
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Supersaturated solution
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a solution containing a greater-than-equilibrium amount of solute.
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Colligative property
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a property that depends only on the amount of dissoved solute rather than on the chemical identity of the solute.
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four colligative properties
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1) Vapor Pressure of Solution < VP of Solvent
2) Depression of Freesing point 3) Elevation of Boiling Point 4) Osmosis |
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Osmosis of a Solution
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The migration of solvent molecules through a semipermeable membrane when solvent and solution are separated by the membrane.
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Equation for lowering of vapor pressure by adding non-volatile solute.
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P solution = (X solvent)(P solvent)
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Equation for change in Boiling/freezing points.
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ΔT = Km
K=constant for substance at either freezing or boiling m=molality. |
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Van't Hoff Factor
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i = Moles of Particles in solution
----------------------------------- Moles of solute dissolved |
