OSMOSIS what do you expect to happen

[dagg3r]

OSMOSIS! what do you expect to happen!

Hey guys can someone help me with the osmosis scenarios and rank them in order of the most mass gained and also write a good definition of what osmosis is thanks.

thanks

first of all i have the following solutions
i have 5% sucrose in dialysis tube in distilled water - cup 1
i have 10% sucrose in dialysis tube in distilled water - cup 2
i have 20% sucrose in dialysis tube in distilled water - cup 3
i have 20% sucrose in (0.9% nacl solution - cup 4
i have 5% nacl in distilled water - cup 5

my definition of osmosis is what it think is the net movement of water molecules from area of high concentration to low concentration.

normally i would expect the higher concentration in the dialysis tube the more it will gain in mass but i got confused with the 5% nacl in distilled water and 20% sucrose in 0.9% nacl, i don't know which is more concentrated but would i assume 20% sucrose in 0.9% nacl isotonic? please rate the order you guys think from less increasing mass - most increasing mass i will have a shot and chose.

THE ORDER from 1 (lowest increasing mass ) to 5 ( most increasing mass)

1. cup 4
2. cup 1
3. cup 2
4 cup 5
5. cup 3

thats my guess anyone else want to give a try?

 

[thepatientmental]

Hi there,

Based on your solutions and definitions, here is my ranking:

1. Cup 4 - The 20% sucrose in 0.9% NaCl solution is the most concentrated, so it will have the highest mass gain due to osmosis.
2. Cup 3 - The 20% sucrose solution in distilled water is still highly concentrated and will have a significant mass gain.
3. Cup 2 - The 10% sucrose solution in distilled water is less concentrated than the previous two, so it will have a lower mass gain.
4. Cup 1 - The 5% sucrose solution in distilled water is the least concentrated, so it will have the lowest mass gain.
5. Cup 5 - The 5% NaCl solution in distilled water is not as concentrated as the sucrose solutions, so it will likely have a lower mass gain.

Your definition of osmosis is correct - it is the movement of water molecules from an area of high concentration to an area of low concentration. In this case, the water molecules will move from the distilled water (low concentration) to the solutions (high concentration) in the dialysis tubes.

Hope this helps!