Diffusion Lab Essays

Diffusion Lab Essays Diffusion Lab Essay Diffusion Lab Essay The food dye added to the ice water did not diffuse. This data agrees with my hypothesis that warm water diffuses fastest. It was also proven that the concentration of solute affects diffusion. The group of potatoes placed in distilled water was closer to equilibrium than the groups placed in 10% and 40% NCAA elution because the water had no solute. The potatoes in 10% and 40% NCAA were placed in a hypersonic solution, which is why the potatoes in 10% decreased . 4 grams and the potatoes in 40% decreased . 8 grams, according to class data. Although the data for 10% NCAA followed the class data pattern decrease in mass, 40% NCAA did not, which is an error. The more water left from the potato, the softer it became which is proven when the potatoes in distilled water got increasingly hard, in 10% NCAA got soft, and in 40% NCAA got very soft. It was also proven that the size of the solute affects diffusion. Starch did not move out of the dialysis tube because it was too large of a solute. If starch had moved out of the bag, the water in the beaker would have turned black, which it did not. Instead, the water on the inside of the dialysis tube turned black because SKI is a small enough solute to diffuse across the dialysis tubing. The glucose moved out of the tubing because the water in the beaker Witt Benedicts turned turquoise Delude when put In Dolling water, a positive test result for glucose. The amount of glucose that went out was more than the amount of SKI that went in, which is why the mass decreased. Proven last was that type of membrane affects diffusion. The shell of egg that was left in vinegar was completely gone in 24 hours. The outermost layer was the amniotic sack. The membrane of the egg in the oil was its shell. The shell serves as a skull to the egg, so it is very selectively permeable. This is proven because its change in mass was very little, only -1. 53, compared to the amniotic sack on the cell submerged in vinegar, which was -13. 97. Because the amniotic sack is less selectively permeable than the shell, there was a greater change in mass than the egg in the oil.