As demonstrated in the above table and graphs, the concentration which demonstrated the greatest change in mass is the 10% saline solution. This is because the cells, when placed in a hypertonic solution, migrate the water molecules out of the cell, shrinking the cell’s mass. This results in a dramatic loss of mass. Additionally, the 5% lost the least mass, supporting the theory (in a hypotonic solution, the cell will gain mass).
Furthermore, analysis of the results allows the approximate salt concentration of the potato cells. The least mass change suggests the internal cell environment is isotonic to the external cell environment. Using the logarithmic trend line (which has an R2 value of 1), it demonstrates that the lowest mass changes …show more content…
The use of varying equipment would reduce the effect of incorrectly calibrated equipment.
Additionally, the discrepancies in the concentration can be resolved by testing the solutions independently before performing the experiment.
Similarly, the random errors could be resolved by completing more trials of the experiment, and averaging these results. It is also suggested that a mould, or a device similar to a cookie cutter, is used for each of the three cube sizes. This would reduce the variation of the cube sizes, and discrepancies in weight, effectively making the experiment more precise.
Conclusion:
It can be concluded from the above results, and supported by the theory previous, that the cubes placed in the mostly strongly concentrated solute will lose significantly greater mass than those placed in distilled water (the least strongly concentrated solute). Additionally, the cubes with the largest surface area to volume ratio migrated the water molecules most efficiently, and the analysis of these results can be used to determine the approximate salinity concentration of the potato cells (2.5%). It has been concluded that both of these results support the theory, in addition to the both Hypothesis A and Hypothesis
Furthermore, analysis of the results allows the approximate salt concentration of the potato cells. The least mass change suggests the internal cell environment is isotonic to the external cell environment. Using the logarithmic trend line (which has an R2 value of 1), it demonstrates that the lowest mass changes …show more content…
The use of varying equipment would reduce the effect of incorrectly calibrated equipment.
Additionally, the discrepancies in the concentration can be resolved by testing the solutions independently before performing the experiment.
Similarly, the random errors could be resolved by completing more trials of the experiment, and averaging these results. It is also suggested that a mould, or a device similar to a cookie cutter, is used for each of the three cube sizes. This would reduce the variation of the cube sizes, and discrepancies in weight, effectively making the experiment more precise.
Conclusion:
It can be concluded from the above results, and supported by the theory previous, that the cubes placed in the mostly strongly concentrated solute will lose significantly greater mass than those placed in distilled water (the least strongly concentrated solute). Additionally, the cubes with the largest surface area to volume ratio migrated the water molecules most efficiently, and the analysis of these results can be used to determine the approximate salinity concentration of the potato cells (2.5%). It has been concluded that both of these results support the theory, in addition to the both Hypothesis A and Hypothesis