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Results/Analysis of Diffusion Lab

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Submitted By dancerbabe
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**IF YOU ARE USING THIS** please note that this was an experiment conducted by me and my lab partner. Due to the fact that she wrote the materials/methods section and the abstract, I have not included it. This is only results and analysis for a diffusion lab for a Biology400 college class. Please do not copy and paste, it is PLAGIARISM. Only use for clarification of analyzed results.

Figure 1a. The following table includes the circumference of the circle that was created by the diffusion of three separate dyes. It also includes their molecular weight. The chart shows that Potassium Chromate diffused much more than the Methylene Blue and the Congo Red, both in the refrigerated gelatin and the room temperature gelatin. The Methylene Blue has the second lowest molecular weight, and diffused more than the Congo Red as well. The results also show that, with the exception of the Potassium Chromate, the dyes in the refrigerated gelatin diffused at a slower rate than those in the room temperature gelatin.
Solute (Dye) Molecular Weight Room Temperature Distance (mm) Refrigeration Distance (mm)
Potassium Chromate 194 18 19
Methylene Blue 374 15 10
Congo Red 697 12 11

Figure 1b. The image below is a photo of the gelatin plates an hour after they were dyed. The plate on the left was placed in the refrigerator, while the plate on the right remained at room temperature.

Figure 2. The table below illustrates the rate of osmosis for each of four different combinations of a solution in a dialysis tube that was placed in a beaker of either distilled water or a 30% Sucrose solution. The results show that combination with the greatest weight change was the one that contained a dialysis tube filled with distilled water placed in a beaker of 30% Sucrose solution. The dialysis tube started off weighing 15.4 grams, and after an hour in the beaker, it weighed 10.6...

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