At $300 \mathrm{K}$, a one litre solution of sucrose (molecular weight: $342$) was prepared by dissolving $40 \mathrm{g}$ of sucrose. What is the approximate osmotic pressure (in $\mathrm{kPa}$) of the solution at the same temperature? $\left(\mathrm{R}=8.314\times {10}^6 {\mathrm{cm}}^3 \mathrm{Pa} {\mathrm{K}}^{-1} {\mathrm{mol}}^{-1}\right)$