Molarity of Surcose Solution Labreport ( Conclusion and Evaluation)

Topics: Osmosis, Semipermeable membrane, Concentration Pages: 2 (840 words) Published: March 17, 2009
The research question that I asked myself before the experiment was “What is the osmotic potential of potato?” The answer I got after the experiment was that the osmotic potential of potato is very high because this experiment exactly showed what happened when there is Osmosis present and the following information will prove it. Our results greatly showed that there has been osmosis present. Osmosis is the diffusion of water through a partially permeable membrane from a region of lower solute concentration to a region of higher solute concentration. And the results we got shows that osmosis occurred in this experiment. In 0.0 mols of sucrose the mass of potato has increased so there has been diffusion of water from 0.0 mols of sucrose which is the lower concentration to 3.71 grams of potato which is the higher concentration. Also in 1.0 mols of sucrose the mass of potato has decreased and it should decrease when there is osmosis present because in this case 1.0 mols of sucrose is the higher concentration and the 3.58 grams of potato is the lower concentration. Basically the potato chips lose more mass in the higher concentrated solution and gain mass in the lower concentrated solution. From 0.0 mols of sucrose to 0.3 mols of sucrose there has been gain in mass for the potatoes. However from 0.4 mols of sucrose to 1.0 mols of sucrose there has been gain in mass for the potatoes. Also 0.3 mols of sucrose is the point where there has been almost no change or very little change in mass of potato. There has been no loss and gain in mass or very little change and gain mass. This means that at this point there concentration of the sucrose and potato are equal. As you can see from the graph that the gain of mass is very little compared to the loss of the mass and this proves that our prediction was right. We predicted that the cell or the potato cannot be very concentrated, because this would result in the cells filling up with water. The prediction was...
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