A solution contains non-volatile solute of molecular mass `M_(2)`. Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure?
Here `n_(2)=` mass of solute, V = volume of solution, `pi =` osmotic pressure.

Options

A. `M_(2) = [(m_(2))/(pi)]VRT`
B. `M_(2) = [(m_(2))/(V)] (RT)/(pi)`
C. `M_(2) = [(m_(2))/(V)] nRT`
D. `M_(2) = [(m_(2))/(V)] (pi)/(RT)`

Answer

B

Explanation

`M_(2) = (m_(2)RT)/(piV) = ((m_(2))/(V)) (RT)/(pi)`.