Learning Outcomes

After completing this module you should be able to:

  • Determine the osmolarity of a solution
  • Use a two compartment model to determine which way water will flow through a selectively permeable membrane, and the rate of flow of water.
1: Osmosis is a special kind of diffusion
2: Putting the Os into Osmolarity
3: Calculating osmolarity
4: Osmolarity adds up
5: Which way will water flow?
6: ...and how fast?
7: What else can the equations tell us?
8: Where does it all end?
9: Drink your water
10: Sharks, alligators and goldfish
11: Summary