\(\pi_{ K _2 SO _4}=\pi_{ Glucose }\)

\(i \times 0.004 \times RT =0.01 \times RT\)

\(i =2.5\)

For \(K _2 SO _4 \quad\{\) for dissociation \(i =1+( n -1) \alpha\}\)

\(\operatorname{DOD}(\alpha)=\frac{ i -1}{ n -1}=\frac{2.5-1}{3-1}=0.75\)

\(\%\) dissociation \(=75\)