lab
If a laboratory assistant prepared solutions of 0.8M, 0.6M, 0.4M, and 0.2Msucrose but forgot to label them there would be no need for him to panic. Knowing the principles of water movement through the processes of osmosis and diffusion, one can conduct a rather simple experiment to determine which flask contains which solution. According to the principles of osmosis, water typically moves from solutions of low solute concentration to areas of high solute concentration. This information would allow one to form the basis of his or her experiment in trying to determine the concentrations of the unlabeled solutions. The specifics of the experiment will be discussed along with the results one would expect from such an experiment. However, it is also important to know why these predictable results would occur. They will also be discussed. In conducting the experiment it would be necessary to obtain dialysis tubing. This would play the role of the semi-permeable membrane. This is important because without a semi-permeable membrane substances other than water, such as glucose, could exit the apparatus and throw off the results. Diffusion of the solutes would occur. Diffusion is the
flask and tied off at both ends. Space would be left for expansion of the bag. The bags the bag subtracted from the final mass of the bag divided by the initial mass and then gained the most mass would be the 0.8M solution. He would also be able to determine the solutions would gain more mass while others would gain very little. A good equation to one would expect. However, there is an explanation for why these results are obtained. solute. Furthermore, water moves from areas that are hypotonic to areas that are 0.8M bag would gain the most mass in water while the other bags would gradually gain determine which flask contains which solution. A simple but effective experiment could four bags would be made (taking solution from each of the four flasks). These four bags concentration. Each bag contains a higher solute concentration than the beaker they were
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Approximate Word count = 839
Approximate Pages = 3 (250 words per page double spaced)
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