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Investigation: What affects the rate of osmosis The Problem Cathy works in a burger bar, making French Fries. She keeps the peeled chipped potatoes in water to stop them going brown before being cooked. She notices that they went soft if left in salt solution and hard if left in fresh water. Cathy needs to ensure that the chips are neither too hard nor too soft in order to make good French Fries for her customers. Factors that affect Osmosis Concentration of solution- it depends on the concentration of water in a solution to whether the potatoes will loose or gain water. Temperatures- the increase of temperature will make the water molecules; move faster so osmosis will happen faster. The size of the chip- the difference in surface area will effect how much water is lost or gained. The type of potato used for chip- each potato will have a different size of vacuole meaning that...

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