An Investigation Into the Effect of Sucrose Concentration On Osmosis In Potato Chips

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An Investigation Into the Effect of Sucrose Concentration On Osmosis in Potato Chips

My aim is to investigate the amount of osmotic activity between a

potato chip and different concentrations of sucrose.

The following affect the rate of osmosis:

Temperature

The warmer most things are the more quickly particles move, therefore

increased temperature will increase the rate of osmosis. So, if a

potato chip is in a highly concentrated solution the water molecules

will quickly leave the chip because of the increase in temperature or

if the chip is in a high water concentration the water molecules will

go inside the chip.

Time

The longer you leave the potato chip in the solution, more osmosis

will occur, so the greater the change in mass in the potato chip.

Surface Area

If the surface area of the chip is large, there would therefore be

more space for osmosis to occur, so the greater the change in mass in

the chip.

Concentration of Sucrose

As the concentration increases the mass of the chip decreases. This is

because the chip has a higher water concentration and 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

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