Our guiding question was: How does the concentration of salt in water affect the rate of osmosis? Osmosis is the spontaneous net movement of solvent molecules through a semipermeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. Osmosis also refers specifically to the diffusion of water molecules. Diffusion is the movement of chemical particles for an area of high concentration to an area of low concentration.The semipermeable is a material or membrane allowing certain substances to pass through it but not others.Large molecules such as sugars or fats, and charged molecules such as sodium ions or chlorine ions cannot pass through the membrane, but
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Then remove the soaked tubing from the water and tightly twist one end several times and either tie with a string of tie a knot in the tubing, fill the model cell with a salt solution of distilled water. We were then instructed to twist the open end of the dialysis tubing and tie it tight, dry the bag and place it into any type of solution.We collected our data by using materials such as a small scale to measure the mass of the model cell in grams, six cups each filled with 100ml of water, the six cups were also filled with 10ml, 20ml, 30ml, 40ml, 50ml, 60ml, of salt each only being used once, and one cup filled with the only 100ml of Karo syrup. Using the materials above we measured the 7 model cells (or dialysis tubing filled with water) on the scale, writing down the mass of each. We then put the model cells inside the solutions and leaving them overnight. After returning to the lab station to finish the experiment, we took the cells out of the solutions, dried the tubing off with a paper towel and weighed the mass of the model cells on the scale. We used a chart rather than a graph while recording our information telling the mass of the model cell before the experiment, what solution the cell was put into, what went into the solution, the mass of the cell after the experiment, and if the solution is isotonic, hypotonic, or
Then remove the soaked tubing from the water and tightly twist one end several times and either tie with a string of tie a knot in the tubing, fill the model cell with a salt solution of distilled water. We were then instructed to twist the open end of the dialysis tubing and tie it tight, dry the bag and place it into any type of solution.We collected our data by using materials such as a small scale to measure the mass of the model cell in grams, six cups each filled with 100ml of water, the six cups were also filled with 10ml, 20ml, 30ml, 40ml, 50ml, 60ml, of salt each only being used once, and one cup filled with the only 100ml of Karo syrup. Using the materials above we measured the 7 model cells (or dialysis tubing filled with water) on the scale, writing down the mass of each. We then put the model cells inside the solutions and leaving them overnight. After returning to the lab station to finish the experiment, we took the cells out of the solutions, dried the tubing off with a paper towel and weighed the mass of the model cells on the scale. We used a chart rather than a graph while recording our information telling the mass of the model cell before the experiment, what solution the cell was put into, what went into the solution, the mass of the cell after the experiment, and if the solution is isotonic, hypotonic, or