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Concentrations
9
Chemistry
11th Grade
03/29/2012

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Cards

Term
Density
Definition
mass/volume
Term
Molarity
Definition
mol solute/L solution
Term
Mole Fraction
Definition
(# mol part/total #mol) = x
Term
Mass Percent
Definition
(mass part/total mass)100%
Term
Molality
Definition
m = mol solute/kg solvent
Term

i

van't Hoff factor

Definition

The number of particles in solution.

molecular solute: 1 (no dissociation)

ionic solute: 2+

Term
ΔT=imk
Definition
ΔT is boiling point elevation / freezing point depression.
i = van't hoff = number of solute particles in solution
m = molality
k = constant for solvent
Term
Vapor Pressure
Definition

Psolvent = xsolvent * Pinitial

ΔP = xsolvent * Pinitial

Term
Osmotic Pressure
Definition

π = iMRT

M=molarity

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