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Investigation of Osmosis
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Method Ten 50ml beakers were labelled accordingly, e.g. 2 x 0m, 2 x 0.25m, 2 x 0.5, 2 x 0.75 m and 2 x 1m. Distilled water and sugar solution were then measured to vary sugar concentration, into beakers using a pipette. Using a size 4 core borer, sections were removed from a peeled, fresh potato. A ruler was used to measure lengths of 1cm and sliced with a scalpel. Ten equal sized chips were cut in total. The work surface was protected as a cutting board was used. The potato chips were then weighed separately and their weights...
to decipher the exact point of equilibrium and the point at which the chips become fully plasmolysed. Instead of using 50 ml beakers, it may have been a lot easier to use test tubes to conduct the experiment with as the amount of solution and concentrations would have been easier to measure. There were no anomalies within the results, although two results were not in a direct line as with the others and this may be due to human error. However, the graph would have been improved if the raw data was used instead of the average percentage change.
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