Question

The osmotic pressure of $0.1M$ sodium chloride solution at $27^{\circ }C$ is

• A. 4.0 atm
• B. 2.46 atm
• C. 4.92 atm
• D. 1.23 atm

Answer 1

Answer: (C)

$\pi =(CST)\times i$
$T=273+21=300$
$\underset{(i=2)}{\mathrm{NaCl}}⟶N{a}^{+}+C{l}^{-}$
$=(0.1\times 0.0821\times 300)\times 2$
$\Rightarrow 4.92atm$