THE EFFECTS OF OSMOSIS
INTRODUCTION
Osmosis is the process where molecules of a solvent are prone to pass through a semi-permeable membrane, going from a less concentrated solution to a higher concentrated solution. Doing this equalizes the concentrations on both sides of the membrane. Our question throughout the experiment was; What effects do the different concentrations of sucrose have on the rate of osmosis? The hypothesis was; If the solute concentrations do effect the rate of osmosis, then if the concentration of sucrose increases, the rate of osmosis will also increase.
MATERIALS AND METHODS We started the experiment by filling four different beakers with deionized water and labeling each beaker, using the labeling tape and markers, …show more content…
As the solute concentrations increased, the rate of osmosis also increased. The trend-line data also shows that our hypothesis was supported because the trend-line was positive and increased. There were a couple observable flaws in the data from the experiment. One of them was in the 0.25M solution category. Group one’s percentage was 117%, which was a bit higher than the other results. The other results in that category were 107%, 111%, 113%, 111%, and 112%. The higher percentage could have happened due to the dialysis bags not being fully patted dry. Another error was in the 0.50M category. Group five got a result of 99%, which was significantly lower than the other results for that category; the other results were 117%, 114%, 120%, 116%, and 115%. This error could have happened due to the dialysis bags not being tied tight enough. If given the chance to redo the experiment, I would probably re-examine and ensure that the dialysis bags were tied correctly and had the right amount of solution in each of them. I would also ensure that all of the bags were dried and weighed correctly. If we were to expand the experiment, I would suggest using more solutions, different than the ones we already used and also possibly leave the solution filled bags in the water longer, to see if that would have any effects. Overall, the experiment seems to be successful and supported our hypothesis as we hoped it
INTRODUCTION
Osmosis is the process where molecules of a solvent are prone to pass through a semi-permeable membrane, going from a less concentrated solution to a higher concentrated solution. Doing this equalizes the concentrations on both sides of the membrane. Our question throughout the experiment was; What effects do the different concentrations of sucrose have on the rate of osmosis? The hypothesis was; If the solute concentrations do effect the rate of osmosis, then if the concentration of sucrose increases, the rate of osmosis will also increase.
MATERIALS AND METHODS We started the experiment by filling four different beakers with deionized water and labeling each beaker, using the labeling tape and markers, …show more content…
As the solute concentrations increased, the rate of osmosis also increased. The trend-line data also shows that our hypothesis was supported because the trend-line was positive and increased. There were a couple observable flaws in the data from the experiment. One of them was in the 0.25M solution category. Group one’s percentage was 117%, which was a bit higher than the other results. The other results in that category were 107%, 111%, 113%, 111%, and 112%. The higher percentage could have happened due to the dialysis bags not being fully patted dry. Another error was in the 0.50M category. Group five got a result of 99%, which was significantly lower than the other results for that category; the other results were 117%, 114%, 120%, 116%, and 115%. This error could have happened due to the dialysis bags not being tied tight enough. If given the chance to redo the experiment, I would probably re-examine and ensure that the dialysis bags were tied correctly and had the right amount of solution in each of them. I would also ensure that all of the bags were dried and weighed correctly. If we were to expand the experiment, I would suggest using more solutions, different than the ones we already used and also possibly leave the solution filled bags in the water longer, to see if that would have any effects. Overall, the experiment seems to be successful and supported our hypothesis as we hoped it