Chemistry, asked by snehastokale, 10 months ago

give balanced equations for the laboratory preparation of the following gases:-
1)Ammonia
2)Ethylene​

Answers

Answered by cutesmile590
3

Answer:

Hope it's help u. .....

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Answered by Anonymous
3

Answer:

Explanation:

Reactants: Ammonium chloride (NH4Cl) and calcium hydroxide [Ca(OH)2] in the ratio of 2:3 by weight.

Reaction:

2NH4Cl + Ca(OH)2  → CaCl2 + 2H2O  +2NH3

Drying of Ammonia Gas

    The gas is passed through a drying tower containing lumps of quicklime (CaO).

    Drying agents such as conc. sulphuric acid, phosphorus pentaoxide and calcium chloride are not used, because ammonia, being basic, reacts with them.

     2NH3 + H2SO4 → (NH4)2SO4

     6NH3 + P2O5 + 3H2O → 2(NH4)3PO4

     CaCl2 + 4NH3 → CaCl2.4NH3  

Collection

Ammonia gas is collected by downward displacement of air because it is

  Lighter than air (VD of NH3 = 8.5 and that of air = 14.4).

  Highly soluble in water, and therefore, it cannot be collected over water.

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