Liquid Solution

A solution of \(8 \mathrm{~g}\) of certain organic compound in \(2 ~\mathrm{dm}^3\) water develops osmotic pressure \(0.6 \mathrm{~atm}\) at \(300 \mathrm{~K}\). Calculate the molar mass of compound. [R = 0.082 atm dm\(^3\) K\(^{-1}\) mol\(^{-1}\)]