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Osmosis Investigation Aim To find the concentration of solutes in plant cells (potato root). Preliminary Work To give me an idea of what to expect in my actual investigation, and to help me perfect my method, I did a preliminary investigation. I took two salt solutions (0.0m and 0.5m) and put 3 chips of approximately the same mass and dimensions, left them in a dry place for 2 hours, and then recorded the change in mass. I recorded my results on a table: Salt Solution (m) Chip Number Start Mass (g) End mass (g) Mass change (g) Mass change (%) Average change (%) 0.0 1 2 3 2.65 2.65 2.26 2.79 2.80 2.37 0.14 0.15 0.11 5.23 5.66 4.57 5.27 0.5 1 2 3 1.55 1.77 2.21 1.43 1.57 2.05 -0.12 -0.26 -0.18 -7.74 -11.29 -7.24 -10.11 From doing these experiments I have found out what method to use and a rough idea of what results to expect. These will also help me to make my prediction. Prediction Osmosis is the movement of water molecules across a semi-permeable membrane. The molecules travel from an area of high water concentration to an area of low water concentration. If there are two solutions with...

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