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Question
When ammonia combines with HCl, NH4Cl is formed as white dense fumes. Why do more fumes appear near HCl?
Answer in Brief
Solution
- When ammonia combines with HCl, NH4Cl is formed as white dense fumes. The reaction takes place in neutralization between a weak base and a strong acid.
- The property of the gas is diffusion.
- Diffusion of gases Ammonia and hydrogen chloride. Concentrated ammonia solution is placed on a pad in one end of a tube and concentrated HCl on the pad at the other. After about a minute, the gases diffuse far enough to meet and a ring of solid ammonium chloride is formed near the HCl end.
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Mixture of Gases - Dalton’S Law of Partial Pressures
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