An aqueous solution of volume 300 cm ^ 3 contains 0 . 63g of...

The osmotic pressure of a non-electrolytic solution can be calculated as follows,

$\pi = CRT$

$\pi$= osmotic pressure

$C$ = molarity$= \dfrac{Numberofmoles}{VolumeofsolutioninL}$

\left(1 . 29 \times {10}^{- 3}\right) = \dfrac{0 . 63}{( MW ) ( 0 . 3 )} \times ( 0 . 083 ) \times 300$</p><p>$MW = \dfrac{0 . 63 \times 0 . 083 \times 300}{( 0 . 3 ) \times \left(1 . 29 \times {10}^{- 3}\right)}$</p><p>$= 40534 . 88$</p><p>$\approx 40535$ (Nearest integer)