00:01
We have a graph showing us the weight of dialysis bags in a beaker.
00:05
We want to know which bag has the highest sucrose concentration.
00:09
Okay, so before we go in, we need to know how the bags are going to change based on their sucrose concentration.
00:16
And then when we know what to expect, we can read the graph.
00:19
So we're looking at movement of water by osmosis.
00:24
So the dialysis bag is what we call semi -permeable.
00:27
When you put it in the sucrose solution, the sucrose can't move in or out.
00:31
Water can.
00:33
So water is going to, by osmosis, water is going to move to the higher solute concentration.
00:50
So that's what we're expecting to happen.
00:52
What this means is that if the bag has an extremely high solute concentration, water is going to enter it.
01:00
If it has a very low solute concentration, water is going to be leaving it...
