Question:
The van’t Hoff factor for a solution of \( \text{K}_2\text{SO}_4 \) in water is:
The van’t Hoff factor for a solution of \( \text{K}_2\text{SO}_4 \) in water is:
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Van’t Hoff factor \( i \) is the total number of ions produced per formula unit of electrolyte. For complete dissociation, count the total particles.
Updated On: Jan 10, 2026
- \( 1 \)
- \( 2 \)
- \( 3 \)
- \( 4 \)
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The Correct Option is C
Solution and Explanation
When \( \text{K}_2\text{SO}_4 \) dissolves in water, it dissociates as:
\[
\text{K}_2\text{SO}_4 \rightarrow 2\text{K}^+ + \text{SO}_4^{2-}
\]
Total number of particles after dissociation:
\[
1 \text{ (salt)} \rightarrow 2 + 1 = 3 \text{ particles}
\]
Therefore, the van’t Hoff factor \( i = 3 \)
Answer: \( \boxed{3} \)
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