osmosis

1.22

0.86, 0.86, 1.98

1.23

0.82

2

1.11, 1.10, 1.26

1.16

0.87,0.96, 0.85

0.89

-23

4

1.26, 1.27, 1.22

1.25

0.98, 1.01, 0.98

0.99

-20.8

6

1.50, 1.44, 1.31

1.42

1.43, 1.23, 1.36

1.34

-5.63

8

1.41, 1.17, 1.26

1.28

1.08, 1.21, 0.97

1.09

-14.84

10

1.29, 1.17, 1.18

1.21

0.94, 1.01, 0.96

0.97

-19.83

Table to show the 2nd experiment

Sucrose Concentration (%)

Mass before (g)

Average mass before (g)

Mass After (g)

Average mass after (g)

Percentage increase/decrease (%)

0

1.30, 1.40, 1.20

1.30

1.37, 1.37, 1.54

1.43

10

2

1.10, 1.10, 1.10

1.10

1.15, 1.13, 1.12

1.13

2.73

4

1.20, 1.20, 1.40

1.27

1.41, 1.20, 1.23

1.28

0.79

6

1.40, 1.40, 1.50

1.43

1.34, 1.31, 1.38

1.34

-6.29

8

1.50, 1.50, 1.50

1.50

1.54, 1.48, 1.47

1.50

0

10

1.50, 1.30, 1.60

1.47

1.20, 1.49, 1.62

1.44

-2.04

Analysis
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In the 1st experiment, as the concentration got higher, generally, the mass of the potatoes got lower, but the graph did not end up as a sigmoid curve which it is supposed to look like. In the 2nd experiment, as the concentration go higher, the mass of the potatoes got lower. The graph looks more like a graph with a sigmoid curve in but still, it is not exactly right, even though I did everything to make it a fair test and get the most accurate results.

My prediction is half correct. In some cases it is correct because the concentration is higher and the mass of the potato is lower, but in other cases the mass of the potato gets higher, which I did not predict. For example, on the 1st experiment at 2 and 4 concentrations the mass of the potato goes up and the same happens on the 2nd experiment at the 6% concentration.