1.

0.1 M NaCl and 0.05 M BaCl_(2) solutons are separated by a semi-permeable membrane in a container. For this system choose the correct answer

Answer»

There is no movement of any solution ACROSS the membrane
Water flows from `BaCl_(2)` solution towards NaCl solution
Water flows from NaCl solution towards `BaCl_(2)` solution
OSMOTIC pressure of 0.1 M NaCl is lower than the osmotic pressure of `BaCl_(2)` (Assume complete dissociation)

Solution :Applying `pi V = iCRT`
i=2 for NaCl
i=3 for `BaCl_(2)`
`pi V_(NaCl)=2xx0.1 RT=0.2 RT`
`pi V_(BaCl_(2))=3xx0.05 RT =0.15 RT`
As `pi V_(NaCl)gt pi V_(BaCl_(2))`. So, water from `BaCl_(2)` towards `NaCl_(2)` solution.


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