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... the water leaves the chip and goes to the sucrose solution which has a low water concentration. If the concentration of sucrose decreases the mass of the chip increases. This is because the chip has a lower water concentration and the water goes inside the chip. Type of Potato Different potatoes have different cell sap concentrations. So as each potato has different cells these cells will affect the rate of osmosis. Osmosis is defined as the net movement of water molecules from a region of high water concentration to a region of low water concentration through a partially permeable membrane. I predict that when the water concentration is low in the potato chip, the water will go inside the tissue of the potato, and the potato chip will gain weight. If there is very little difference in the two water concentrations there would only be a slight change in mass and if there ...