AP EAMCET · Chemistry · Solutions
What is the van't Hoff factor of Ferric Sulphate (Assume \(100 \%\) ionization)
- A \(2\)
- B \(4\)
- C \(5\)
- D \(3\)
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 \(=i=2+3=5\).
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