solutions exam

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always contains two or more substances that are visibly distinguishable

heterogenous mixture
heterogenous mixture example

whole wheat bread
homogenous mixture example

a sugar water solution
a homogeneous mixture of substances in a single phase

solution
mixture that contains visible particles that settle out unless the mixture is stirred

suspension
contains particles that are in a dispersed phase & do not settle out

colloid
metal solution

alloy
colloids...

scatter light
used to distinguish between solutions & colloids

tyndall effect
substance whoe water solution is a good conductor of electricity

electrolyte
using larger pieces of solid does NOT

increase the rate of dissolving a solid in water
increase in surface area of solute..

increases the rate of dissolution
stirring increases the rate of dissolution because..

it brings fresh solvent into contact with the solute
in a solution at equilibrium the rate of dissolution and the rate of crystallization are

equal
a general rule used for predicting whether one substance will form a solution with another

like dissolves like
the escape of gas from a gas-liquid solution

effervescence
a molar solution of CaCl2 contains 1 mole of CaCl2 for every..

liter of solution
molarity, molality, & moles of solute per liter of solution ALL

express concentration
what is expressed in a gram of solute instead of mols of solute

neither molarity or molality
what depends on the concentration of the solute particles?

colligative properties
freezing -pt depression & boling pt elevation

is a colligative property because it is directly proportional to the mol concentration of a solution

Author:	seniorcompany18
ID:	154711
Card Set:	solutions exam
Updated:	2012-05-19 02:06:40
Tags:	chem exam
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Description:	chem exam
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