Osmosis Paper

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Osmosis Planning Aim To investigate osmosis in potato chips in varying concentrations of solution (sodium chloride (Nacl) and distilled water) and its effects. To see the change in mass before and after the effect of osmosis. Osmosis Osmosis is the movement of water from a less concentrated solution to a more concentrated solution through a partially permeable membrane. This occurs in situations such as the movement through a cell wall, it allows smaller molecules through but not bigger molecules. The molecules will diffuse until the area where the molecules are reach equilibrium. Prediction I think that the increase of the concentration of the solution in the test tube the lower the mass of the potato will be. I came…show more content…
Another thing i had to take into account was the type of potato I used as i didn’t want the results to be affected by a change in water mass in the potato as different types of potatoes containing varying masses of water, also some potatoes could be more pores and would end up affecting my results and providing me with more outliers. The dependent variable is the substance that we measure in the experiment for the purpose of my investigation the dependant variable is the potato chips as the change in mass will allow us know the effect of osmosis, and how much effect did occur. For my investigation i will measure the potatoes in grams for a better reading however when drawing up my graph to compare the results I believe that using percentages will be easier and more understandable. To hopefully achieve better results i will use the same equipments throughout just as a precaution. Preliminary During our preliminary we used two different concentrations. Sodium chloride and distilled water. We used both of them and compared them to each other. We chose to use the 5 molar sodium chloride concentration and distilled water. However for the actual investigation we would use more concentrations that would go in-between the two extreme concentrations. We used a volume of 60ml and 20ml. Then out of the two we chose the one that showed us the most promising results to use for the main investigation. We ended up choosing the 60ml as
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