Osmosis summary and how to set up an experiment where one could figure out the molar of unkown solutions

Diffusion is defined as the spontaneous tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area. This means that molecules move from an area of where there is a high concentration of them to where there is a low concentration. Osmosis is said to be the diffusion of water across a selectively permeable membrane. A membrane is said to be selectively permeable because it only allows …

…into the tubing. This is an example of how water moves from a hypotonic solution to a hypertonic solution. The tube that had the least change in weight will be the .2 M solution. Because there is not a very steep gradient of solute concentration between the beaker and the tubing there will not be a great gain of water inside the tube. The .6 and .4 molar solutions can now be figured out based on this information.