Water and Diffusion Ch. 6.2

Water molecule…... Covalent bonds Polar + charge at O end - charge at H end Pull apart ions

Solution Concentration: Like density = # molecules per volume of container Low or High Concentration * * * * * * * * * * * * * * * * * * * * High Conc. * * Low Conc.

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

Concentration Gradient * * * * * *

Equilibrium =Equal concentra-tions On both sides of membrane Osmosis stops H2O H2O