0.1 M NaCl and 0.05 M `BaCl_(2)` solutions are separated by a sami-premeable membrane in a container. For this system, choose the correct answer

Options

A. There is no movement of any solution across the membrane
B. Water flows from `BaCl_(2)` solution towards NaCl solution
C. Water flows from NaCl solution towards `BaCl_(2)` solution
D. Osmotic pressure of 0.1 M NaCl is lower than the osmotic pressure of `BaCl_(2)` (Assume complete dissociation)

Answer

B

Explanation

Applying `piV=iCRT`
i = 2 for NaCl
i = 3 for `BaCl_(2)`
`piV_(NaCl)=2xx0.1RT=0.2RT`
`piV_(BaCl_(2))=3xx0.05RT=0.15RT`
As `piV_(NaCl)gtpiV_(BaCl_(2))`. So, water flows from `BaCl_(2)` towards NaCl solution.