Biology Lab - Part C

In part C of the experiment, we were to demonstrate osmosis between distilled pissing supply supply and apiece of the solutions in the dialysis tubes (water, 0.2 M, 0.6 M, 0.8 M, and 1.0 M sucrose all equal by unknown colors). We hypothesized that all of the dialysis bags except water go out increase in mass. This is because the bags will be hypertonic to the distilled water solution in the beaker, meaning that there are to a greater extent than solutes and less water than the surrounding. In a hypertonic condition, water is rushed into the cell (or the dialysis tube in this case) in monastic fiat to dilute the concentrated solution in the cell. Water would non change in mass because it is isotonic to its surrounding. By inserting these cardin overlyme dialysis bags filled with 25 mL of each solution into beakers of distilled water, we were able-bodied to see if there was the process of osmosis, if any. Before putting the six different dialysis bags into the solution of distilled water, we meticulously measured the mass of each bag. This was critical because we needed the initial mass in order to find the part change in mass. After wait for 30 minutes sharp, we measured the bags again and saw remarkable increases in mass for five out of the six dialysis bags.



The orangish solution did increase, but it was only a mere 1.47 percent change in mass. From this collected data, we were able to hypothesize which diagonal solution was which closeness. The order of the colors of solutions from least concentrated to nearly concentrated was: orange, green, yellow, blue, pink, and purple. How we were able to figure this out was because we knew that because of the solutions (except water) hypertonic nature, more water would rush in through the dialysis bags as the concentration increased. Not only did were we able to actually witness osmosis, we were also able to identify each colored solution to its concentration by the percent change in mass.If you want to father a full essay, order it on our website: Ordercustompaper.com



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