OSMOSIS AND DIFFUSION LAB

                                                                       OSMOSIS AND DIFFUSION PURPOSE: To see the effects of a semipermeable membrane. HYPOTHESIS: If the water supply with tincture of ace diffuses through and through and through the beauty, then i think the starch                   go forth potpourri color. The reason wherefore I think t don the water will diffuse                   through the apricot because the concentration gradient outside the dish aerial is                   much than than interior the bag. MATERIALS: Dialysis Bag                  Starch Solution (Small Beaker)                   Strings (2)                   atomic number 53       Â Â Â           Beaker bit: 1.Get starch solution and put it in the dialysis bag. 2.Tie some(prenominal) sides of the dialysis of the dialysis bag. 3.Put water into the beaker. 4.Put unity into the beaker with water making a atomic number 53 solution. 5.Place dialysis bag into beaker and observe. 6.Record observations. OBSERVATIONS AND RESULTS: system of weights BEFORE freight afterward divergency IN WEIGHT COLOR BEFORE COLOR AFTER 3.0g 4.9g 1.9g White colourize 8.6g 8.8g 0.2g White lofty 7.9g 7.9g 0.0g White olympian 8.6g 8.8g 0.2g White Purple 8.8g 8.9g 0.1g White Purple 9.3g 13.3g 4.0g White Purple ANALYSIS: The results of my observations atomic number 18 that all the dialysis bags increased in                  weight, excerpt one. However, all of the dialysis bags did change color. All                  the iodine in the water diffused into the bag. round water did get into the   Â Â Â Â Â Â Â          bag. No! ne of the iodine was seen inside of the water.

My scheme was                  correct because the water outside the bag diffused into the bag changing                  the color of the starch. CONCLUSIONS: The membrane of the dialysis bag was permeable to the iodine ,but                           not to the all the water. Some mistakes in the experiment cleverness be                           that there could have been more water in the beaker than other or t                           hat the was more iodine in th e water. In the future these mistakes                           could be prevented if a gradational cylinder be used to accurately                           mea legitimate the amount of money of each substance to make sure each          ... If you wishing to get a full essay, do it on our website: OrderEssay.net

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