Water and Diffusion

1
Water and Diffusion

• Ch. 6.2

2
Water molecule...

• Covalent bonds
• Polar
• charge at O end
• - charge at H end
• Pull apart ions

3
Solution Concentration

• Like density
• molecules per
• volume of container
• Low or High Concentration

High Conc.

Low Conc.
4
Diffusion

• Movement of molecules
• gas or liquid
• Law of Diffusion
• From High Concentration to
• Low Concentration

5
Concentration Gradient


6
Equilibrium

• Equal concentra-tions
• On both sides of membrane
• Osmosis stops

H2O H2O H2O H2O H2O H2O