Biology Lab - Part C

In branch C of the experiment, we were to demonstrate osmosis between distilled wee-wee supply supply and apiece of the resolves in the dialysis tubes (water, 0.2 M, 0.6 M, 0.8 M, and 1.0 M saccharose all equal by unknown colors). We hypothesized that all of the dialysis bags leave off water go out increase in host. This is because the bags give be hypertonic to the distilled water solution in the beaker, content that thither are to a greater extent than solutes and less(prenominal) water than the surrounding. In a hypertonic condition, water is cannonball along into the cell (or the dialysis tube in this case) in monastic revise to dilute the concentrated solution in the cell. Water would non transmit 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 satisfactory-bodied to see if there was the process of osmosis, if any. Be fore 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 need the initial mass in stray to find the part change in mass. After wait for 30 legal proceeding 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, plainly it was sole(prenominal) a mere 1.47 share 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 wer! e able to figure this out was because we knew that because of the solutions (except water) hypertonic nature, more water would rushing in through the dialysis bags as the concentration increased. Not only did were we able to actually witness osmosis, we were also able to rate each colored solution to its concentration by the percent change in mass.If you want to father a wax essay, order it on our website: OrderEssay.net

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