Colligative properties
The key idea
In sufficiently ideal dilute solutions, several properties depend primarily on the number of dissolved particles rather than their chemical identity.
Why it matters
Boiling-point elevation, freezing-point depression and osmotic pressure connect microscopic particle counting to macroscopic measurements.
A picture to remember
Boiling-point elevation, freezing-point depression and osmotic pressure connect microscopic particle counting to macroscopic measurements.