determination of the halls
From the graph I can clearly see that Distilled water has a much larger concentration of water then the cell sap in the potato tissue.
I can make this conclusion because the results show a big increase in weight of the potato piece. Meaning that water has moved from outside the potato into the potato due to Osmosis, proving that the distilled water had a higher concentration of water, as water moves from a high concentration to a low concentration.
I can also see that the glucose solution of 0.8M has a much lower water concentration then the cell sap in the potato tissue. I know this because the potato in the 0.8M solution decreased in weight by
0.5g. This means that due to Osmosis, water moved from inside the potato i.e. the higher concentration of water, to outside the potato
i.e. the lower concentration of water.
From the graph I can see that both the 0.2M and 0.4M solutions are close to the concentration of the cell sap as they are both closest to
0. However I can find more accurately what the genuine glucose concentration of the cell sap is by looking where the line of best fit crosses the 'X' axis. The glucose concentration of the potato cell sap is 0.38M meaning my prediction was relatively close but incorrect. If
I put a potato segment into a glucose solution of 0.38M, after 24 hours I would find no change. This is because the concentration inside and outside of the potato is the same so no Osmosis occurs. Instead the same number of water molecules flow in and out of the potato cells achieving 'Net Flow' or a 'Dynamic Equilibrium,' which is what Osmosis aims to do.
I can make this conclusion because the results show a big increase in weight of the potato piece. Meaning that water has moved from outside the potato into the potato due to Osmosis, proving that the distilled water had a higher concentration of water, as water moves from a high concentration to a low concentration.
I can also see that the glucose solution of 0.8M has a much lower water concentration then the cell sap in the potato tissue. I know this because the potato in the 0.8M solution decreased in weight by
0.5g. This means that due to Osmosis, water moved from inside the potato i.e. the higher concentration of water, to outside the potato
i.e. the lower concentration of water.
From the graph I can see that both the 0.2M and 0.4M solutions are close to the concentration of the cell sap as they are both closest to
0. However I can find more accurately what the genuine glucose concentration of the cell sap is by looking where the line of best fit crosses the 'X' axis. The glucose concentration of the potato cell sap is 0.38M meaning my prediction was relatively close but incorrect. If
I put a potato segment into a glucose solution of 0.38M, after 24 hours I would find no change. This is because the concentration inside and outside of the potato is the same so no Osmosis occurs. Instead the same number of water molecules flow in and out of the potato cells achieving 'Net Flow' or a 'Dynamic Equilibrium,' which is what Osmosis aims to do.