By the end of this unit students will be able to:

  • Distinguish between a solute and a solvent.
  • Compare and contrast saturated, unsaturated, and supersaturated. 
  • List and explain factors that affect the rate at which a solid solute dissolves in a liquid solvent.
  • Explain the meaning of “like dissolves like” in terms of polar substances and nonpolar substances.
  • Describe the effects that temperature has on solubility.
  • Compare and contrast “dilute” and “concentrated” solutions in terms of their solvent and solute.
  • Explain what a colligative property is and how it specifically affects a substance.
  • Use a reaction pathway to discuss the energy of the forward and reverse reactions. 
  • Identify the activated complex and activation energy of a reaction pathway. 
  • Determine if a reaction is endothermic and exothermic based on its reaction pathway.
  • Use the concentration formula to solve for the mass of solute, volume of solute, or molarity of the solution.
  • Use the dilution formula to determine how to make a dilute solution from a more concentrated one.

Explore Concentration at PhET