Osmosis Deshelled Egg Lab Report

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The Study of Diffusion and Osmosis Using Deshelled Eggs Maquita A. Dieufene Jessica Thelwell(Partner) 10/09/2014 1611 Evening Lab Introduction It is quite simple to overlook the roles diffusion and osmosis play in daily life. If one has ever spent too much time in the pool and watched as their fingers begin to turn prune-like, that is an example of osmosis. Osmosis is simply defined as the movement of a concentrated solvent through a semi permeable membrane to a more concentrated solvent.(Biology Corner) Relating to the earlier example of osmosis, your body acts as the more concentrated solvent for the water to penetrate. Diffusion is the exact opposite of osmosis. Diffusion is the movement of particles from a higher concentration …show more content…

From this \ experiment, it can be determined if these solutions were hypertonic, hypotonic or isotonic. Going into this experiment, it can be expected for the weight of the egg to decrease as the solution has greater amounts of sucrose, making the solution hypertonic meaning the weight of the egg will …show more content…

In each individual beaker, they were filled with solutions made up of 0% sucrose, 10% sucrose, 20% sucrose, 30% sucrose, 40% sucrose, and finally the unknown percentage of sucrose. Each group was instructed to measure the weight change of the eggs in fifteen minute intervals. To get the most accurate weight, the scales were reset to 0 to get the accurate initial weight of the egg and for future weighing throughout the experiment. The eggs were placed in the solutions, charting the change in weight after 15, 30 and 45 minutes; handling the eggs carefully each time and wiping off any excess water to avoid a misread by the scale. It is necessary to remove the egg and weigh individually each time to get the most accurate results. After the experiment was done, the eggs were placed back in their containers and the solution discarded of. It is imperative not to put the solution back in the containers. After the data was collected, the change of weight was calculated by subtracting the initial weight of the egg from the final change in weight indicated by the 45 minute mark. No conversions were necessary in this experiment, as grams were the measurement used by the scale.

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