CHE102 - Lecture 3

# CHE102 - Lecture 3 - Concentration of Solutions...

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Concentration of Solutions Qualitatively: dilute vs. concentrated. Quantitatively: 1. Mass percent and parts per million: 100 x solution of mass total component of mass component of % Mass = 6 10 x solution of mass total component of mass ppm million per parts = =

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Concentration of Solutions Qualitatively: dilute vs. concentrated. Quantitatively: 2. Mole fraction: components all of moles total component of moles component of fraction Mole = Χ = Example: 1 mole glucose dissolved in 10 moles water 0.09 mol 10 mol 1 mol 1 6 12 6 O H C = + = Χ
Concentration of Solutions Qualitatively: dilute vs. concentrated. Quantitatively: 3. Molarity: liters) (in solution of volume solute of moles Molarity = Example: 2.0 moles glucose dissolved in enough water to make 15 liters of solution M 0.13 L 15 mol 2.0 ] O H [C 6 12 6 = =

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Concentration of Solutions Qualitatively: dilute vs. concentrated. Quantitatively: 4. Molality: kg) (in solvent of mass solute of moles Molality = Example: 3.0 moles glucose dissolved in 12 kg of water m 0.25 kg 12 mol 3.0 ] O H [C 6 12 6 = =
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## This note was uploaded on 10/10/2010 for the course CHE 102 taught by Professor Watson during the Spring '08 term at SUNY Buffalo.

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CHE102 - Lecture 3 - Concentration of Solutions...

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