Required practical: Osmosis

Question 1

What equipment is needed for this experiment?

Answer 1

-Potato
-knife
-Tile
-Borer
-Ruler
-Filter paper
-Scales

Question 2

What is the method for this experiment?

Answer 2

1-Cut 5 potato slices using knife, tile and borer
2-Even all chips to same length
3-Place chips on filter to dry up excess water
4-Record the weight of each chip using a scale
5-Place chips into different sucrose solutions.
6-Place a bung on top of each tube

Question 3

Why do the chips need to be the same lengths?

Answer 3

So the mass is similar and also a fairer test and gives more conclusive answers.

Question 4

Why should you dry up excess water?

Answer 4

So any excess water doesn’t interfere with the aim of the experiment.

Question 5

Why should you dry up excess water?

Answer 5

So any excess water doesn’t interfere with the aim of the experiment.

Question 6

What would happen if you didn’t put a bung on top of the tube?

Answer 6

Some of the solution would evaporate which leaves less liquid and makes the remain liquid more concentrated.

Question 7

What is the independent variable?

Answer 7

The concentration of the salt solution

Question 8

What is the dependent variable?

Answer 8

Change in mass

Question 9

What sort of graph should be plotted?

Answer 9

A line graph