Lesson 3 of 8

Solubility

Goal: Describe how solubility changes with temperature.

Puzzles for this lesson

Word search0 of 8 foundCrossword0 of 36 letters

There is a limit to how much solute will dissolve. When no more will dissolve, the solution is saturated.

A beaker of blue solution with blue crystals lying at the bottom
A saturated solution. The extra crystals stay at the bottom, however long you stir.
  • Solubility is the most solute that will dissolve in 100 g of water at a given temperature.
  • Most solids are more soluble in hot water than in cold water.
  • A solubility curve is a graph of solubility against temperature.

Your turn

This lesson’s activity starts here in a moment.

Check yourself

Knowledge organiser

This lesson on one page. Tap it to make it bigger.

Key words in this lesson

Solute The substance that dissolves

Solution A solute dissolved in a solvent

Soluble Able to dissolve

Saturated solution A solution that can dissolve no more solute

Solubility How much solute will dissolve in a set amount of solvent

For teachers: AQA 3.5.2 · Pearson Edexcel 12.2 in part · Cambridge 8Cc.05