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Prediction I predict that in a high salt solution the potato core will loss mass because water will leave the cells because of osmosis and the net movement through the partially permeable membrane will be from the potatoes to the water. Also if in pure water the potato cores will swell and gain mass because water will enter the cells by osmosis and the net movement through the partially permeable membrane will be from the water to the potatoes. At some point the concentration of the water and the concentration of the potato cores will be the same and there will be a movement of particles through the partially permeable membrane but it will have no net movement e.g. the mass will remain unchanged. Scientific Reason for Prediction Osmosis is the movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration. First...

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