The Concentration Of The Membrane Essay
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 carefully remove the egg, dry off all the liquid and weigh them to the nearest 0.1 g. The group would then return the egg to the solution and wait another 15 minutes and repeat the weighing process. The group would then continue until they reached 75 minutes. Each time the group would record all of the data in the table given to us.
After we recorded all of our results in the table, we were able to then find the difference of weight change over time. Using this table, we were also able to create a…