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To find out what happens when a potato chip is left in a sugar solution.

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Introduction

Osmosis in a potato chip Aim: To find out what happens when a potato chip is left in a sugar solution. Possible Variables: * Sugar solution * Size of the potato * Time in the solution * Any skin on the potato * Temperature of solution * Surface are of potato I have decided to analyze what happens to potato chips in different concentrations of sugar solution. Safety: While I am preparing for the experiment I must make sure I cut the potato using the cork borer onto a white tile, not into my hand. ...read more.

Middle

Apparatus: * A potato * A size 3 cork borer * A white tile * A scalpel * A weighing scales * 18 bungs for test tubes * 20ml 0.0M sugar solution for 3 flat bottomed test tubes * 20ml 0.1M sugar solution for 3 flat bottomed test tubes * 20ml 0.2M sugar solution for 3 flat bottomed test tubes * 20ml 0.3M sugar solution for 3 flat bottomed test tubes * 20ml 0.4M sugar solution for 3 flat bottomed test tubes * 20ml 0.5M sugar solution for 3 flat bottomed test tubes Diagram: Prediction: Osmosis is a passage of water molecules traveling from a high concentration of water to a low concentration of water through a partially permeable membrane. ...read more.

Conclusion

This means that the mass of the potato chip will increase because of the water the chip has gained. In the 0.5M sugar solution I expect that the potato chip will become flaccid as the solution has a high concentration of sugar and a low concentration of water. Therefore no water will pass into the potato chip, the water inside it will pass out to the low concentration around the chip. The potato chip will become flaccid and will lose mass. I predict that the isotonic point ...read more.

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