Dialysis Tubing Experiment Lab Report

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Diffusion and Osmosis Through Dialysis tubing We did this experiment to test the diffusion of different substances through dialysis tubing. We used what eve knew about diffusion to make predictions on what we thought the mass of the dialysis tubing to be after submerging them for 30 miss and we knew that diffuse occurs from highest concentration to lowest concentration.

Since the dialysis tubing are filled With different substances than What they are being put into then they should all gain or lose mass. If the dialysis tubing is submerged in different substance than what is in the tubing then some of the alkalis tubing will lose mass and some will gain mass. To begin this experiment we filled 5 dialysis tubing with one of the five substances: water, egg white, Nasal, glucose, or sucrose.

The equipment used was: 5 dialysis tubing, a scale, beakers, water, egg white, sucrose, glucose, Nasal, and 5 cups. We put the five dialysis tubing filled with one of the five substance into a cup filled with one of the substance: water, egg white, Nasal, glucose, or sucrose. Then we let them sit in there for 30 miss then took them out tot the cups and remanded them. Our results were: Original Mass of dialysis tubing Sucrose Glucose Water Nasal Egg White 10. G 9. G Our substance combinations were: water in water;Pater in the dialysis tubing submerged in a cup of avatar sucrose in egg White-sucrose in the dialysis tubing submerged in a CLIP Of egg white glucose in Nasal-glucose in the dialysis tubing submerged in a cup of Nasal Nasal in sucrose-Nasal in the dialysis tubing submerged in a cup of sucrose egg white in glucose-egg white in the dialysis tubing submerged in a cup of glucose Post Submerge Water Sucrose 11 Bag g 8.

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Osmosis Lab Report Dialysis Tubing

Niacin The dialysis tubing did let some of the different solutions in but not all of them. Most of the dialysis tubing gained mass and some lost some mass as well. We found that the substances go from an area of high concentration to an area of low concentration, The data supports our purpose of doing this experiment to find out what happens when a substance in a dialysis tubing is put into a cup of a difference substance to see which ones gain mass and which ones lose mass. A pattern tooth data is that the control group did not gain or lose mass.

Two of the absences gained mass and two of the substance lost mass, Our results proved our hypothesis that some of the dialysis tubing would gain mass and some of the dialysis tubing would lose mass, Because two of the dialysis tubing gained mass and two of the dialysis tubing lose mass it just shows that the substances went for an area of high concentration to an area of low concentration, A few errors of our experiment is that eve could have not used enough of the substances in the dialysis tubing or we could have left the dialysis tubing the cups Of substance for a long amount Of time Which could have changed our results Majorca because the more time the dialysis tubing sit in the cup of substances the more they had time to diffuse. Osmosis through Dialysis Tubes We performed this experiment to see how water moves across a semi. Permeable membrane. We filled the dialysis tubes with different Mole concentrations of sucrose, and we used our knowledge of osmosis to figure out the different concentrations. If the dialysis tube increases both in size and weight, then that dialysis tube had the highest mole concentration of sucrose.

We learned that during osmosis, a tort of passive diffusion which means that it squires no energy to move across the membrane, water will always move to the area where the water concentration is lower, so if the sucrose has a high mole concentration then the water will move into the hag since there is less water there, and if the bag has a low mole concentration then there will be little water moving into the bag since there is already a relatively high concentration in the bag. The materials we used to conduct this experiment were: 6 Dialysis Tubes, 6 different mole concentrations of sucrose (O M concentration, 2 x 10-MM concentration, 4 x 10-1 M concentration, 6 x ICC M concentration, 8 x 10-1 M incineration, I M concentration), 6 cups to hold the water, a scale to weigh the mass of the dialysis tubes before submerging the bags in water and after. To begin this experiment we first filled the bags with the different mole concentrations of sucrose, the different concentrations were color-coordinated with different colors for a different concentration.

Next we weighed the mass of the bags before submerging them in the water, and filled the cups with water so that we could submerge the tubes, After the bags were massed and the cups were filled with water we submerged the bags for 30 minutes. After the 30 minutes were up we took the hags out of the water and blotted them off with a dry paper towel. Finally we massed the bags and recorded our results so that we could compare them with the results from before we submerged the tubes, Here is our results: Before submerging the tubes: Blue concentration Red concentration Yellow concentration Light Green concentration Purple concentration Green concentration 10. 2 g 10. 5811. 1 B 11,g Post-submerge: Blue concentration Red concentration Yellow concentration Light Green 10. G 13. G 15. G 12. G 12. g 14. g

After analyzing our results we concluded that the Blue substance was water, because it gained no mass, The purple substance was the 2 x 10-1 M concentration because it gained little mass, more than the blue substance, The light green substance the 4 x M concentration because it gained some mass, more than the 2 x 10-1 . Concentration but not as much as these 10-1 M The red substance Vass the 6 x 10-1 M concentration because it gained more mass than the 4 x 10-1 M concentration but less than the 8 x 10 The green substance was the 8 x 10-1 M concentration because it gained more ass than the . 6 Molar concentration but less than the 1 M concentration, and finally the Yellow substance was the I M concentration, because it gained the most mass. Our results answered our question, How can you tell the molar concentration of a 0-2, A, -6, . 8 , and 1 molar concentration of sucrose?

Our results showed us that our hypothesis, If the dialysis tube increases both in size and weight, then that dialysis tube had the highest mole concentration of sucrose, was also correct because the Yellow substance gained the most mass out of all the other absences and was also the substance with the highest Molar concentration tot I , and the glue concentration gained no mass therefore it was water, because if there is as much water on the inside as the outside then no osmosis takes place. Some sources of error for this experiment is that we could have left the solutions in longer, possibly changing our results. Or that we could have also not used enough of the solutions. Diffusion using Potato rounds We are conducting this experiment in order to see what happens during the process known as diffusion across a semi-permeable membrane. Our hypothesis as that if the Molar concentration is higher in a sucrose solution then the potato will lose mass and if the Molar concentration is lower in a sucrose solution then the potato will gain mass.

We learned about diffusion and how a semi-permeable membrane only lets certain molecules pass through it. Diffusion is the act of a molecule passively passing through a semi-permeable membrane. This action Of diffusion helps regulate the cell’s processes and this is done on a regular basis so that the cell can live and function. For this experiment we needed: 36 potato sticks (18th a sweet potato and 18 of regular potato), 6 sucrose solutions (MM, -MM, MM, . MM, -MM, and MM), a scale, cups. First what we did was we massed our potato sticks, and recorded them. Next we filled the cups with the different solutions of sucrose and submerged the potato sticks for 30 minutes.