What is the underlying chemical reason that is purified by passing gas through its saturated solutio — Ionic Equilibrium Chemistry Question
Question
What is the underlying chemical reason that $NaCl$ is purified by passing $HCl$ gas through its saturated solution?
Answer: B
💡 Solution & Explanation
The massive influx of $Cl^-$ from $HCl$ dramatically increases the Ionic Product of $Na^+$ and $Cl^-$. Since $Q_{sp} > K_{sp}$ for $NaCl$, it precipitates, leaving highly soluble impurities behind.
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