What is the difference between osmolarity and molarity?
Molarity is the concentration of molecules of EACH solute found in a solution.
Osmolarity is the Total concentration of ALL osmotically active solute particles in the solution.
When does molarity = osmolarity?
Molarity = osmolarity when the solute does not dissociate in the solution. Examples of such solutes are glucose, urea, glycerol ...
What is osmosis?
Osmosis is the net diffusion of water from one region to another.