CHM 11500 Lecture Notes - Lecture 23: Osmotic Pressure, Melting Point, Colligative Properties
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29 Jul 2015
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Chm 115 - lecture 23 - properties of solutions. Concentration is the amount of solute that is dissolved in a unit amount of solvent. Concentration = (amount of solute) / (amount of solvent or solution) Molarity (m) is the number of moles of solute dissolved in one liter of solution. Molarity = (moles of solute / liters of solution) Molality (m) is the number of moles of solute dissolved in one kilogram of solvent. Molality = (moles of solute / kilograms of solvent) Mole fraction (x) is the number of moles of solute dissolved in one mole of solvent plus solutes. Mole fraction = (moles of solute)/(moles of solvent + moles of solute) Different units of concentration are useful for different types of analysis/calculations. Colligative properties are properties of solutions that are influenced by the amount of solute in the solution, and not affected by the type of solute.
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