Thiosulphate solution

increased ECF’s absorbance in the three hypotonic solutions show that more light was absorbed - an indicator of a ruptured red blood cell. Although the 50mM solution produced a lower absorbance than the 100mM solution when the expected amount of the former should have been higher than the latter, the hypotonic solution still has a larger absorbance than the isotonic solution. It is worth noting that the hypotonic environments produced the clearest red solutions. In all three hypotonic environments, high

isotonic solution in cells, a solution in which the concentration of dissolved substances in the solution is the same as the concentration of dissolved substances inside a cell hypertonic solution in cells, a solution in which the concentration of dissolved substances outside the cell is higher than the concentration inside the cell; causes a cell to shrink as water leaves the cell hypotonic solution in cells, a solution in which the concentration of dissolved substances is lower in the solution outside

the same, cell volume stays constant. When erythrocytes are placed in a hypotonic solution (a solution with lower concentration than the cell), water moves into the red blood cell, causing it to swell, to increase its volume and eventually burst ( haemolysis). When erythrocytes are

Important equations: Molarity = moles of solute / liters of solution E = hν = hc/λ Elight = hνlight = hc/λlight = ΔE = EUO – EOO Objective: We will be using various combinations of distilled water, hydrogen peroxide, malonic acid, ascorbic acid (Vitamin C), acetic acid (Vinegar), starch solution, laundry detergent, iodine tincture, manganese sulfate, and sulfamic acid to produce multiple pairs of solutions labeled Solution A and Solution B. The goal is to either observe the process of fluorescence

I was able to determine which solution corresponded to which molarity by my knowledge of how water osmosis from high concentrations of water to low concentrations of water. I determined solution D to be the lowest molarity of 0.0 moles because the potatoes that were immersed in this solution had the highest average percent increase in mass of 23.08%. Since there is a small amount of sugar in the potato cores and the potato cores gained a large amount of mass, that must mean that there was a higher

Introduction: Osmosis is the movement of water from a less concentrated solution to a more concentrated solution through a semipermeable membrane because it is active transport, thus going against the concentration gradient.1 This process was initially thoroughly studied 1877 by German plant physiologist, Wilhelm Pfeffer.2. For Osmosis to occur, it requires two solutions with different concentrations and a partially permeable membrane to separate them. Since the water diffuses towards the more concentrated

Introduction The intent of this experiment is to see if the density of fresh water and salt water effects whether or not a sweet potato will float in it. Based on my research, I know that a white potato will sink in fresh water and that a sweet potato will float in fresh water. I also know that a sweet potato will float in any liquid that is denser than fresh water, like salt water. Based on my research I formed a hypothesis. My hypothesis is, if I put a sweet potato in fresh tap water, or tap water

Question: What effect do different concentrations of a sugar solution have on the egg and its weight? Background Research: Osmosis is the passive transport of water across a selectively permeable membrane from an area of high concentration to an area of low concentration. Other than the concentration gradient, a factor that affects osmosis is temperature. The higher the temperature, the faster osmosis takes place. Osmosis doesn’t require energy for it to take place. However, osmosis does have a

Osmosis Lab Report Nathan Shelton Honors Biology A Mrs. Skaggs 10/14/16 I. Purpose- The problem being solved in the lab is, if you make an egg, which represents a cell, undergo different environments then it will gain mass or lose mass, and increase in size or decrease in size. This all depends on the type of environment the egg is undergoing. II. Relevant Context- This is an osmosis and cellular transport lab. This lab is done to show us how different types of solvents can affect the

diffusion when it moves from higher concentration to lower concentration the experiment mainly discuss how diffusion and finding which of the substance permeated out of the membrane through testing in the experiment we tested the distilled water solution on a culture dish because we were curious to see which one of the compounds is small enough to go through to permeate through the membrane after testing of glucose chloride ions and sulfate ions showed positive on the test this indicates that