Liquid Solution

What is osmotic pressure of solution of \(1.7 \mathrm{~g} \mathrm{~CaCl}_2\) in \(1.25 \mathrm{~dm}^3\) water at \(300 \mathrm{~K}\) if van't Hoff factor and molar mass of \(\mathrm{CaCl}_2\), are 2.47 and \(111 \mathrm{~g} \mathrm{~mol}^{-1}\) respectively?

\(\left[\mathrm{R}=0.082 \mathrm{~dm}^3 \mathrm{~atm} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}\right]\)