Page 266 - Chemistry eBook
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   Types of Solutions
   1. SATURATED SOLUTION: A solution that holds the maximum amount of solute it can hold
Š In a saturated solution, the rate of dissolving = the rate of crystallizing.
Š If you add more solute to a saturated solution, it would either CRYSTALLIZE
(form crystals) or PRECIPITATE (form solid deposits at the bottom of the
container).
2. UNSATURATED SOLUTION: A solution that holds less than the maximum
amount of solute it can hold
Š In an unsaturated solution, the rate of dissolving is greater than the rate of
crystallizing.
Š If you add more solute to an unsaturated solution, it will dissolve.
3. SUPERSATURATED SOLUTION: Solution that contains more solute than it can hold Š Rate of crystallizing is greater than the rate of dissolving
Š There will be non-dissolved solute on the bottom of the container.
There are many Regents questions on this topic.
Unsaturated means that it’s
not saturated. It can still hold more.
Supersaturated means that it’s oversaturated. There’s too much solute in the solution.
       265 © UNIT 7: SOLUTIONS / SOLUBILITY
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