Chicken Egg Osmosis Lab Report

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In this experiment each group received 2 chicken eggs whose shells have been dissolved off. This gave us a differentially permeable membrane so that we can observe osmosis and what happens when the membrane is presented with different solutions. Since we did not know the concentration of the egg, we had to assume that it equaled the concentration of the membrane. We then had the ability to determine the concentration based off the assumption and the rate of osmosis.

We used 5 different sucrose solutions: 0%, 10%, 20%, 30%, and 40%. One group had an ‘Unknown’ sucrose solution, this would give us the opportunity to use all of our data collected from all the groups to figure out what the sucrose percentage would be. We first weighed our eggs at 0 minutes to the nearest 0.1 g and recorded our results.

Next, each group put their eggs into mason jars containing the 5 different sucrose concentration levels and 1 unknown. In 15-minute intervals, each group would
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It was hypothesized that if we place an egg in a low sucrose solution, then it will enlarge or swell, making it a hypotonic solution. The results of this experiment prove this hypothesis was correct. According to the results, as time increased, the weight of the egg also increased. This can be concluded because the low sucrose solution caused the egg to intact the liquid causing it to expand.

It was also hypothesized that if we place an egg in a high sucrose solution, then it would shrivel up, making it a hypertonic solution. The products of this experiment prove this hypothesis to be correct. The results show that as time increased, the weight change of the egg decreased. This completes the hypothesis because the high sucrose solution caused the egg to lose liquid and shrink in overall

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