Osmosis - Topic 1

Question 1

Step 1

Answer 1

Cut potato into identical cylinders.

Question 2

Step 2

Answer 2

-Divide the cylinders into groups of three
-Mesure the mass of each group

Question 3

Step 3

Answer 3

-Prepare beakers containing different concentrations of sucrose solution and one of pure water
-Put one group of cylinders in each beaker

Question 4

Step 4

Answer 4

-Leave for at least 40 minutes
-Take out the cylinders
-Dry them gently with paper towel
-Measure the mass of each group again

Question 5

Equation

Answer 5

% change in mass = final mass - initial mass / initial mass x 100

Question 6

Independent variable

Answer 6

Concentration of sucrose solution

Question 7

Dependant variable

Answer 7

Potato cylinder mass