Give preparation of ammonia
Answers
Answer:Ammonia gas is usually prepared in the laboratory by gently heating ammonium chloride (NH4Cl) and slaked lime [Ca(OH)2]. NH3 is prepared in the laboratory by heating an ammonium salt with NaOH. This is a standard test in the laboratory for NH4+ compounds. The NH3 evolved may be detected.
Explanation:
Up till the early 1900s, ammonia was mostly produced via the dry distillation of animal waste products along with certain vegetable waste that was rich in nitrogen. The distillation of these waste products resulted in the reduction of nitrites and nitrous acids along with hydrogen. Eventually, ammonia was obtained as a product. Today, ammonia is produced industrially via the Haber-Bosch process, which involves a reaction in the gaseous phase between molecular nitrogen and molecular hydrogen. It is important to note that this reaction takes place at relatively high temperatures and high pressure (in the order of 450 degrees celsius and over 10000 kilopascals).
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