A student investigated the effect of different concentrations of sugar solutions on some potato cylinders. He took a large potato and used a cork borer to cut out several cylinders, each exactly the same diameter. He trimmed the peel off the ends of the cylinders, and then cut them into exactly 1 cm lengths.
He then measured the
mass of each piece.
He placed one piece of potato in each of six beakers. He then covered each piece with either water, or one of five
different concentrations of sugar solution. He used the same volume of solution in each beaker.
The student left the potato pieces in the beakers for 30 minutes. Then he removed them from the beakers, blotted
them dry with filter paper and measured their mass again.
These were the results he wrote down.
Before piece A = 5.2g piece B = 5.1g
piece C = 4.9 g
piece D = 5.0g piece E = 5.1g
piece F = 5.2g
Solutions A, distilled water B, 0.1% sugar solution C, 0.2% solution
D, 0.5% solution E, 0.8% solution
F, 1.0% solution
After A = 5.5g
B = 5.2g
C = 4.99
D = 5.3g
E = 5.0g
F = 5.0g
a In the space below, draw a results table and fill in the student's results. Include a row or column showing the
change in mass. Take care to head each column and row fully, with units.