The Solubility of KNO3
Vocabulary
Solution
A mixture where one substance is dissolved in another
Solutesubstance being dissolved
Solvent
Substance doing the dissolving
Solubility
The given amount of solute that can be dissolved in a given amount of solvent at a
given temperature.
Saturated
A solution that can hold no more solute
Soluble
A substance that will dissolve in water
Insoluble
A substance that will not dissolve in water
Rate of Solution
Increased by
Stirring
Increase surface area
Heat
Solubility Curves
Drawn using regression line- average between points
Used to gain information without going through experiment
Can use to find various volumes of solvents and masses of solutes
Key Points
In the same volume of solvent the more solute you add the higher the temperature must
be to dissolve all solute.
The less solute you use in the same volume of solvent the cooler the temperature needs
to be for the solute to dissolve
The rate of solubility can be increased by:
Increasing surface area (crushing)
Stirring
Heating solvent
Inferences
How might manufacturer use solubility to produce their products?
How can using the incorrect amount of solute affect profits?
If I have too much sugar in my tea, how can I get it to all dissolve without adding more
water?