Explain How Does The Concentration Of A Saline Solution Affect The Movement Of Solvent Molecules
Analysis: The purpose of this lab is to find out how does the concentration of a saline solution affect the movement of the solvent molecules. Before the experiment, it was predicted that the saline solution in baggies would remain inside, without mixing with the water, and that the mass would not change. Throughout the experiment, the saline solution was added into the baggie, it was discovered that a small portion of the saline solution would leave the bag. In the baggie that has 0.2 percent concentration of sucrose, it’s initial mass was 20.18 grams, after spending a night, in a beaker of water, a small portion of the 0.2 percent concentration of sucrose escaped, and the final mass decreased to 18.73 grams. There was a 7.19 percent decrease
of mass between initial and final masses in the 0.2 percent concentration of sucrose. The lowest percent change was for the distilled water at a decrease of 3.36 percent, and the highest percent change was for the 0.20 percent at a decrease of 7.19 percent. In this experiment, not only did 0.2 percent concentration of sucrose have a decrease in it’s percentage change, but it decreasedx for all of the concentrations of sucrose. It was also noticed that the same outcome occured for each of the other concentrations. Each concentration’s final mass was lower than what it’s initial mass. Osmosis is the diffusion of water from an are of high water concentration to an area of low water concentration; and in this experiment water is diffused through the plastic baggies, that represents the semipermeable membrane, from an area of high water concentration to an area of low water concentration.
Conclusion:
In conclusion, the baggies lose mass because the water concentration in the beaker is less than the water concentration in the baggies. The water molecules move through the semipermeable membrane, to the water in the beaker. This then causes the decreasing of mass in the baggies because there are less water molecules in it.
of mass between initial and final masses in the 0.2 percent concentration of sucrose. The lowest percent change was for the distilled water at a decrease of 3.36 percent, and the highest percent change was for the 0.20 percent at a decrease of 7.19 percent. In this experiment, not only did 0.2 percent concentration of sucrose have a decrease in it’s percentage change, but it decreasedx for all of the concentrations of sucrose. It was also noticed that the same outcome occured for each of the other concentrations. Each concentration’s final mass was lower than what it’s initial mass. Osmosis is the diffusion of water from an are of high water concentration to an area of low water concentration; and in this experiment water is diffused through the plastic baggies, that represents the semipermeable membrane, from an area of high water concentration to an area of low water concentration.
Conclusion:
In conclusion, the baggies lose mass because the water concentration in the beaker is less than the water concentration in the baggies. The water molecules move through the semipermeable membrane, to the water in the beaker. This then causes the decreasing of mass in the baggies because there are less water molecules in it.