potato lab Essay

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Natasha Mariner
Ms. Quenon
Period 7
11 January 9, 2015
Macroscopic Osmosis in Potato Tissue
Data:
Figure #1 The Effects of Osmosis on Potato Tissues:
Salt Concentration
Potato Mass Before
Solution
Potato Mass after
Solution
Percent Change
Observations
0%
2.13
2.19
2.8%
The potato slices sunk to the bottom and the water was clear.
1%
1.98
1.94
2.06%
The potato slices sunk and the water was mostly clear.
5%
2.19
1.96
-10.5%
The potato slices floated for a while and then sunk; water was murky.
20%
1.95
1.69
-13.3%
The potato slices stayed floating the entire 15mins and there were bubbles in the water, also the water was very murky.

Analysis:
Percent Change of mass in Potato Cells due to Amount of Salt Concentration

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