Solutions

There were many observable factors when investigating osmosis in potatoes. Four different solutions were created (distilled water, 1% salt (NaCl), 3% salt and 5% salt. The potatoes were sliced until they were 3cm long, each test tube contained 3 strips of potato cores and a different concentration. The potato strips were weighed and the results recorded. The potato cores were left in each solution for 24 hours. Once the test results were collected the data was averaged and placed into a graph…

methods performed include using three different solutions: Gatorade, Karo syrup, and Coca-Cola. A decalcified egg is submerged for various amounts of time in each solution and weighed, using an electronic scale, to calculate the percent weight change. The results for each solution showed that the egg did take on additional mass due to the solution being hypotonic. Although each solution forced the egg to take on water gaining mass, Coca-Cola was the solution that forced the greatest increase in…

beaker of sucrose solution would have the water flowing out of it, and the bag with water that was put into a beaker of water would have an equal flowing of water. The hypothesis was correct for all three of its components. The rate of osmosis is different between hypotonic, hypertonic, and isotonic solutions because of the water that is either moving into the bag or moving out…

the concentration of solutions on either side of the membrane. An example of osmosis can be observed by placing a red blood cell into a solution. if the concentration of the solution the red blood cell is placed into has a higher concentration the water from the inside of the cell will move out. The water moves out of the cell in order to dilute the solution making it less concentrated. In this experiment ,my group members and I used 0.04 M of a starch solution, Dialysis tubing…

The purpose of the diaper lab was to see if the concentration of solutes in a solution has an effect on the amount of liquid absorbed by a diaper. The experiment tested how well the diaper would retain liquids with a different solute concentration. The hypothesis driving the experiment was if a hypertonic solution is added to a diaper, then the diaper will be less absorbent because the water will be drawn out of the sodium polyacrylate (powder) in the diaper due to osmosis. Sodium polyacrylate…

Project Name: The effect of sugar and salt solution on the chemotaxis of planarians Introduction Questions: The research question is, “What is the effect of sugar and salt solution on the chemotaxis of planaria?” This research question is worth asking to see if planarians have an affinity toward salt or sugar solutions. By studying different types of organisms, we are better able to see the type of environment that organisms like to live in. This allows us to have a better understanding…

movement of the solutions moving up from the “mysterious” solution inside the semi permeable membrane which is known as the dialysis bag. Osmosis happens because of the molecules crossing, for more of an understanding according to Anita H, she says “…high water concentration to an area of low water concentration through a partially selectively permeable membrane” (Anita) The molecules cross from less concentrated solution to the higher concentration solutions (The low concentration solution is…

This is an example of a hypertonic solution as the potato loses its water due to the process of osmosis. The difference in concentration is one main factor that affected the rate of osmosis, resulting in more or less mass being gained/lost. The larger the gradient, the more mass is gained…

Different Concentrations of Saline Solutions Impacting The Mass of The Baggies Research Question: Will the different concentrations of the saline solutions impact the mass of the baggies due to the effect of osmosis. Independent Variable: The concentration of saline in each solution. Dependent Variable: The mass of the baggies(g) What needs to be controlled: The type of solution in bags. The amount of solution in cups…

with different masses and percent changes. By comparing the percnt changes, the researchrs determined the molarity of ach solution. They believed that solution A was .4M, solution B was 1.0M, solution C was .6M, solution D was .8M, solution E was .2M, and solution F was water. However, after reviewing the classes data, the students realized that solution B was 1.0M and solution D was .8M. The graph showed the error because it was not linear. So, the hypothesis was correct, but the expirmental…