Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 21
Solubility, Vapour Pressure and Raoult's Law, Colligative Properties and the van 't Hoff Factor
Sea water, a soft drink, a saline drip and the coolant in a car are all solutions. How much of a substance dissolves, how the vapour above a solution behaves and why salt on a road melts ice all follow from a few ideas. In this chapter you learn the ways to express concentration, solubility and Henry's law, Raoult's law and non-ideal solutions, and the colligative properties that give molar masses. Python plots vapour pressure against composition and finds the molar mass of an unknown solute.
3 courses
