In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. if a pressure of 70.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 ∘c when reverse osmosis stops?

Answer : The final concentration of the seawater is, 2.909 mole/L

Explanation :

Formula used for osmotic pressure :

where,

= osmotic pressure  = 70.0 bar = 70 atm

R = solution constant  = 0.0821 Latm/moleK

T= temperature of solution =

C = final concentration of seawater = ?

Now put all the given values in the above formula, we get the concentration of seawater.

Therefore, the final concentration of the seawater is, 2.909 mole/L

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).