molecular weight higher than the pore size of the tubing or dialysis bag material doesnt go.
can protein (albumin) diffuse out of a dialysis tube and why
The water in the dialysis bag would diffuse out into the molasses solution. This is because there is a high concentration of water inside the dialysis bag and a a lower concentration of water in the molasses solution. By diffusion or osmosis, the water would tend to move from the concentrated bag to a less concentrated solution.
starch doesnt diffuse through the dialysis membrane.
When considering a dialysis bag, size will determine whether the molecules will permeate the bag. The smaller the molecules, the easier they well be able to pass through, and the faster diffusion will take place. Starch is a carbohydrate - a macromolecule formed from repeating bonded units of glucose monomers. Salt, in comparison, is simply Na+ and Cl- ions (in the aqueous solution). Starch will have a much tougher time getting through the artificial membrane, so it is a safe bet that salt will diffuse faster.
Yes, protein can diffuse through dialysis tubing due to its small size and ability to pass through the pores of the tubing.
urea
Distilled water will move out of the dialysis bag and into the sucrose solution due to osmosis and the fact that the dialysis bag has a hypertonic solution of H2O as compared to the sucrose solution.
meh
During dialysis, urea, creatinine, excess electrolytes (such as potassium or sodium), and excess fluid are some of the solutes that typically diffuse from the patient's blood into the dialysis solution.
starch doesnt diffuse through the dialysis membrane.
sodium chloride