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AP EAMCET · Chemistry · Solutions

What is the van't Hoff factor of Ferric Sulphate (Assume \(100 \%\) ionization)

  1. A \(2\)
  2. B \(4\)
  3. C \(5\)
  4. D \(3\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(5\)

Step-by-step Solution

Detailed explanation

Ferric sulphate \(=\mathrm{Fe}_2\left(\mathrm{SO}_4\right)_3\) \(\mathrm{Fe}_2\left(\mathrm{SO}_4\right)_3 \rightarrow 2 \mathrm{Fe}^{3+}+3 \mathrm{SO}_4{ }^{2-}\) (complete ionization) \(\Rightarrow \quad\) van't Hoff factor \(=i=2+3=5\).