Table is repeated below.

Table

Mass of potato at start in grams

7.94

7.95

7.96

7.93

7.93

7.95

Mass of potato after 24 hours in grams

10.14

9.10

8.21

7.53

7.18

7.00

Concentration of sugar solution

in mol/dm

0.0

0.1

0.2

0.3

0.4

0.5

Change in mass in grams

2.20

1.15

0.25

-0.40

-0.75

-0.95

01.5 Calculate the percentage change in mass for the potato in 0.2 mol/dm' sugar solution.

Use Table 1

Use the equation:

change in mass

percentage change in mass = mass of potato at start x 100

Give your answer to 3 significant figures.

[3 marks]