Solubility - Unit 1 - Year 10 Chemistry Revision 2024

• Solute


  the substance which is dissolved in a solvent
• Solvent


  the liquid which dissolves substances in it
• Solution


  the result of dissolving something in a liquid
• Solubility


  to what extent a material will dissolve
• Soluble


  the substance will dissolve in a particular solvent
• Saturated


  a solution in which no more solute will dissolve at that temperature
• Insoluble


  the substance will not dissolve in a particular solvent
• Hydration


  the addition of water to a substance
• Dehydration


  the removal of water from a substance
• Solubility Units


  the mass of solute that will dissolve per 100g of solvent at a specific temperature (g/100g)
• Solubility of Solids


  increases as temperature increases
• Solubility of Gases


  decreases as temperature increases
• Fountain Experiment


  1. Force up a few drops of water up the central tube.

  2. Ammonia gas dissolves in just a few drops, creating a huge loss of pressure.

  3. Water is forced up by the change in pressure.

  4. The ammonia dissolved in the water causes a colour change as it is alkaline.