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Investigate Osmosis In Potato Chips.
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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Title: Investigate osmosis in potato chips. Aim: To see how different concentrations of saltwater affects osmosis on potato chips To find the isotonic solution for potato cells To find the water potential of potato cells. Method: Cut 18 cylinders of potato of 50mm each Dry cylinders Weigh cylinders and record weight Prepare saltwater solutions at set concentrations Pipette 30mm3 of each solution into separate Petri dishes Leave for 3 hours Remove and dry cylinders Weigh cylinders and record weight. Apparatus: 200mm3 1 molar saltwater solution 200mm3 Distilled water Electronic balance Graduated pipette Knife Large potato No. 4 cork borer 6 Petri dishes with lids. Rule Stop watch Test tube holder 6 Test tubes Tissue How it will be kept fair (independent and fixed variables): ? Potato will be cut into cylinders using a no. 4 cork borer. They will be cut to 50mm each, so it has a close to the same surface area as possible. ? The same potato will be use as there may be differences between potatoes. ? The cylinders will be weighed on the same electronic balance at its most accurate degree...
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