Calculate osmotic pressure of a solutions having `0.1M NaCl & 0.2M Na_(2)SO_(4)` and `0.5MHA`.
(Given : Weak acid is `20%` dissociated at `300K`).

Explanation

To calculate the osmotic pressure of the solution containing 0.1M NaCl, 0.2M Na₂SO₄, and 0.5M HA (where HA is a weak acid that is 20% dissociated), we will use the formula for osmotic pressure:

\[ \pi = i \cdot C \cdot R \cdot T \]

Where:
- \(\pi\) = osmotic pressure
...