Question

A $0.1M$ solution of potassium ferrocyanide is $46\%$ dissociated at ${18}^{\circ }C$. What will be its osmotic pressure?

Answer 1

$\pi =iCST\alpha =\frac{i-1}{n-1}$
$0.46=\frac{i-1}{5-1}i=2.84$
$\pi =2.84\times 0.1\times 0.082\times 291$
$\pi =6.785atm$