Questions related to Osmosis

[Primarygun]

I want to have a more clear further concept for the osmosis, can anyone help me?

When do the net movement become equilibrium? Same pressure, same water potential? Or same concentration ( Probably wrong, right?)?

My teacher used a dialysis tubing containing pure water, why isn't the water coming out at once after it is taken out from the pure water solution?

May you refer my ugly or beautiful drawing first?

In region A , there is a lot of mobile ions and water molecules.

In region B, there is a lot of water molecules and ions are absent.

A selectively membrane separate them.

1.Why the rate of the water molecules flow from high water potential solution is

higher than the rate of water molecules flow from the salt solution?

Isn't the density of the salt solution is higher than the density of the water solution and has a greater pressure to push the water molecules(B) back to B?

2. Is the external pressure concerned on the reaction force only? Not describing the pressure by the B ?

Really appreciate anyone who help me.

[Skye]

The side that contains the ions has a lower concentration of water than the other side. The water is flowing from the side with the higher concentration to the side with lower concentration. Water molecules can flow from side to side because they are moving. They transfer from one side to the other when they hit a hole in the membrane. Because there are more in a certain volume in the more concentrated side, they hit the membrane more often, and so more transfer to the other side.

[Primarygun]

That's means chemical potential?

How to combine the ideal law with the attractions to show ?

Sorry, the salt ions change to big molecule. OK?