Study Chem Ch 13 pt 1 Flash Cards

 
Pile Management Card
Chem Ch 13 pt 1

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Heat the Solvent
particles mov efaster as energy increases
More collisions between solute and solvent
Agitate Solution...
spreads out already dissolved solute to bring in fresh solvent in contact w/ solute
Ex: shake, stir
Increase surface area of solute...
more solute is touching solvent
ex: crush and spread out
Factors that affect rate of dissolving
Increase surface area of solute, Agitate Solution, heat solvent
Tyndall effect
light can be scattered by collodial particles
Evidence that it is a colloid
scatter light
does ont immediatly settle
Dispersing Medium (colloid)
solvent like Medium
Dispersed phase (colloid)
solute like particles
colloids
inbetween solution and suspension, medium sized particles, small enough to be kept in permanent suspension
Ex: milk
evidence that it is a suspension
can be physically sepearated
particles settle
may scatter light
not transparent
suspension
particles in a solvent are so large that they settle out unless the mixture is constantly stirred
ex: muddy water
Evidence that an alloy is a solution
cannot be filtered
no light is scattering
alloy
atoms of 2 or more metals are uniformly mixed

ex: Sterling Silver Cu+Ag
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