Investigation of Osmosis

Investigation of Osmosis

My investigation was on osmosis; the experiment that I planned was to

find out the potato, which weighed the heaviest after being put into a

beaker filled with a sugar solution and a beaker filled with water.

This is my conclusion; before, the potato weighed 2.43 of sugar and

2.43 of water. After 24hours of the potato been in a sugar solution

the results changed to be 1.73 of sugar, and 2.86 of water. I have

drawn out a table of my results and the differences in weight.

Solution 1 = 10 ml of sugar solution

Solution 2 = 8.5 ml of sugar solution & 1.5 ml of water

Solution 3 = 1.5 ml of sugar solution & 8.5 ml of water

Solution 4 = 5 ml of sugar solution & 5 ml of water

Solution 5 = 10 ml of water

Solution

Potato

Weight Before

Weight After

Difference

Difference (%)

1

1

2

3

.61

.61

.62

.36

.35

.41

-25

-26

-21

40.9 Loss

42.6 Loss

33.9 Loss

2

4

5

6

.59

.58

.62

.39

.42

.39

-20

-26

-23

33.9 Loss

44.8 Loss

37.1 Loss

3

7

8

9

.56

.56

.58

.67

.67

.64

11

11

6

19.6 Gain

19.6 Gain

10.3 Gain

4

10

11

12

.56

.57

.58

.48

.49

.49

8

8

9

16.6 Loss

10.3 Loss

15.5 Loss

5

13