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Describe the preparation of ammonium solution.

Describe the preparation of ammonium solution.

Answers

(i). Apparatus.



(ii). Procedure:
- The apparatus is altered as above.
- The drying tower is removed and the gas produced is directly passed into water by an inverted funnel.
Reasons for the inverted broad funnel.
- It increases the surface area for the dissolution of thereby preventing water from “sucking back” into the hot flask and hence prevents chances of an explosion.

(iii). Equation.


Note:
- The solution cannot be prepared by leading the gas directly to water by the delivery tube.

Reason:
- Ammonia gas is very soluble in water and so water would rush up the delivery tube and into the hot flask causing it to crack.
- The rim of the inverted funnel is just below the water surface.

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Kavungya answered the question on March 5, 2019 at 10:20

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