At 27^° C, a solution containing 2.5 g of solute in 250.0 mL of solution exerts an osmotic pressure of 400 Pa. The molar mass of the solute is ____ g…

At $\displaystyle 27^{\circ} \mathrm{C}$, a solution containing $\displaystyle 2.5$ g of solute in $\displaystyle 250.0$ mL of solution exerts an osmotic pressure of $\displaystyle 400$ Pa . The molar mass of the solute is $\displaystyle \_\_\_\_$ $\displaystyle \mathrm{g} \mathrm{mol}^{-1}$ (Nearest integer) (Given : $\displaystyle \mathrm{R}=0.083 \mathrm{~L}$ bar $\displaystyle \mathrm{K}^{-1} \mathrm{~mol}^{-1}$ )