Chemistry - Liquid Solution Question with Solution | TestHub

The osmotic pressure $\pi$ of a solution is given by the formula:

$\pi =CRT$

Given:
Concentration $C=0.5\text{ M}=0.5{\text{ mol dm}}^{-3}$
Gas constant $R=0.0821{\text{ atm dm}}^3{\text{ K}}^{-1}{\text{ mol}}^{-1}$
Temperature $T=300\text{ K}$

Substituting the values into the formula:

$\pi =0.5\times 0.0821\times 300$

$\pi =0.5\times 24.63$

$\pi =12.315\text{ atm}$

Rounding to two decimal places, we get $12.32\text{ atm}$.

Answer: 12.32 atm