C2.2.3 - Solubility Flashcards
What is meant by a ‘saturated solution’
A solution containing the maximum amount of solute dissolved into it.
There is always some undissolved substance in the container.
What is meant by ‘solubility’?
How well a solute dissolves into 100 g of water
What units do we measure solubility in?
g/100 g of water
Which is more soluble: salt or sugar?
Sugar
How do you know that sugar is more soluble than salt?
More sugar can dissolve into 100 g of water than salt.
What is meant by an ‘insoluble’ solute?
A solute that will not dissolve in water.
Give an example of an insoluble solute.
Chalk
Sand
How does temperature affect solubility?
The higher the temperature, the more soluble a substance becomes.
Does the solubility of different substances increase at the same speed?
No some substances do not become much more soluble. e.g. salt.
Write the substances in order, from most soluble to least soluble.
Lithium Chloride
Copper Chloride
Magnesium Chloride
Sodium Chloride
Which solute in the graph beceoms less soluble the higher the temperature?
Cerium (III) sulfate
