EXPERIMENT 3: OSMOSIS – DIRECTION AND CONCENTRATION GRADIENTS Hypothesis: I hypothesize that if there are more concentrated sucrose solutions present, then it will cause a greater amount of osmosis. Scientific Reasoning: These results one can analyze the data based on the initial and final weight of the dialysis tubing. The data shows that when the dialysis tubing was placed in different sucrose concentrations, which they responded differently than, would have been expected. All three bags that were placed in the 3% sucrose solutions showed an increase in weight, which was supposed to happen. The blue bag was supposed to decrease in weight as a result of the differentiation between the concentrations of solutes in the solutions on either sides of the bag. However I think that if the bags had remained in the solutions for longer periods of time they would have lost weight. There are several reasons why they may have been an increase in the weight. These can include failing to stir the solutions completely to make them more concentrated in order for osmosis to occur. Not tying the
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- Spring '18
- Osmosis, Semipermeable membrane