What will happen to mass of the cell when it is placed in different solutions while trying to reach equilibrium? Background Information Osmosis is the procedure where water or different types of liquids move through a semipermeable membrane. This type of passage is considered as simple diffusion where no energy is required. This means that the liquid will have to leave the cell or enter it so that equilibrium can be reached.
Equilibrium is the state reached when the amount of concentration is equal between the cell and the solution it is placed in. When the concentration which is the solute has the same exact concentration of the cell which is the solvent the solution is known to be an isotonic solution. When the concentration of the solute is greater than the concentration of the solvent the solution is known to be a hypertonic solution. Finally, when the concentration of the solute is lower than the concentration of the solvent the solution is known to be a hypotonic solution.
Therefore, hypertonic and hypotonic solutions aren’t at equilibrium. Variables * Independent * The change in solution in milliliters * Dependent * The change in mass in grams * Controlled * Amount of solution in milliliter * Same potato was used * Initial mass of the potato slice in grams * Temperature of the solution in Co * Same amount of time where the potato stays in the solution in minutes Hypothesis “If the solution that the potato slice is placed in changes then the mass of the potato will increase or decrease. “ Qualitative and Quantitative Data
The Essay on Dconcentrations Of Solutions Determine The Mass Of A Potato
... more concentrated solution to reach an equilibrium. When regarding cells osmosis has three different terms that are used to describe their concentration. The first ... molarity level was at 0 and at .2 the potatoes had gained mass so therefore they were placed in a hypotonic environments. ...
Qualitative Data Change in the color of the potato * Change in the shape of the potato * Quantitative Data * Change in the mass of the potato Relating the Hypothesis to the Scientific Theory When the mass of the potato slice increases, it means that it has been placed in a hypotonic solution. On the other hand, if the mass of the potato slice decreases, it means that it has been placed in a hypertonic solution. Change in Mass (grams) Change in Concentration
This data does not have to undergo any statistic test because it answers the research question. The data that has been collected is related to the research question because it is trying to prove that when the mass of the potato slice increases, it means that it has been placed in a hypotonic solution. On the other hand, if the mass of the potato slice decreases, it means that it has been placed in a hypertonic solution. The different solutions were chosen to see what will happen to the potato slice when it has been placed in different solutions while trying to reach equilibrium.
For the data to be reliable, each solution has to be tested five times. Procedure 1. Cut the potato into 5 slices with a sharp knife. 2. Measure the weight of each slice using the scale to make sure all slices weigh the same. 3. Take 5 test-tubes and place 10 milliliters water in one of them. 4. Add 2 tablespoons of salt to the water and stir using the stirring rod. 5. For the four remaining test-tubes, add 10 milliliters of each different solution which are oil, lemon juice, vinegar and diluted iodine. 6. Place a potato slice in each of the test-tubes for 2 minutes. Use the stopwatch to be exact.
