Experiment to Find the Reaction of Potato Chips in a Salt Solution

Experiment to Find the Reaction of Potato Chips in a Salt Solution

Aim: to find a reaction of potato chips in a salt solution.

Hypothesis:

I predict that the potato will change in mass. The difference

will occur in accordance to the difference of concentration of the

salt solution each potato chip is submerged in. The cause of this

change in mass is called osmosis. Osmosis is the movement of water

through cells in plants. I make my prediction on the pretext that

water diffuses from high concentration cells to low concentration

cells. So if there is a lot of salt dissolved into water surrounding

the organism (in this case a potato chip) then water particles from

other cells are going to attempt to equal the concentration of water

in the solution with the water concentration in the cells. Therefore

most of the water from the cells of the potato chipping will change in

mass depending on the concentration of solution. However the solution

could be more water than salt so the water from the solution could be

more concentrated than the water inside the potato cells. If so then

in theory the water in the solution should diffuse into the potato

cells and increase in mass.

Apparatus: Potato to perform the experiment on,

Thin metal tube to cut potato chops with,

Knife to cut the potato to the correct shape and size for reasons

stated in the method,

Tile as not to score any school surfaces,

Test tubes to hold the potato and solution in,

Beaker to alter solution concentration in,

Measuring cylinder to measure small amounts of fluids,

Pipette to gather small amounts of fluids,

Test tube holder to hold test tubes,

2 Molar Salt solutions to submerge potato chip in.

Diagram:

Variables:

I am making variables in only one field. I am changing only the

concentration of the salt solution. I am changing the concentrations

of the solutions to provide different results so I can compare the