 |
| Prepare Ammonia Gas |
To prepare ammonia gas in the laboratory
AIM : To prepare ammonia gas in the laboratory and study its properties
THEORY : On
heating a mixture of ammonium chloride and calcium hydroxide, we get ammonium
gas.
APPARATUS : Big hard glass tube, delivery tube, hollow
glass tube, Bunsen burner, glass rod, two single-holed rubber cork, four to
five gas jar with lids, stand and one CaO bottle as shown in the figure.
CHEMICALS : Calcium hydroxide, ammonium chloride,
concentrated hydrochloric acid, red and blue litmus papers.
Preparation of Ammonia gas
 |
| Prepare Ammonia Gas In Laboratory (step-1) |
 |
| Prepare Ammonia Gas In Laboratory (step-2) |
 |
| Prepare Ammonia Gas In Laboratory (step-3) |
 |
| Prepare Ammonia Gas In Laboratory (step-4) |
 |
| Prepare Ammonia Gas In Laboratory (step-5) |
 |
| Prepare Ammonia Gas In Laboratory (step-6) |
i. Colour of ammonia gas :
ii. Odour or smell of ammonia gas :
iii. Ammonia gas is collected by downhard displacement of air therefore it is than air.
iv. Use moist red and blue litmus papers and check the effect on ammonia gas and conclude :
Wet red litmus :
Wet blue litmus :
Conclusion
:
What happens
when a glass rod is dipped in concentrated HCL is brought near the mouth of gas
jar containing ammonia ?
CONCLUSION
PRACTICAL USES
Ammonia is used in the manufacture of fertilizers, nitric
acid, nylon fibers and in many organic chemicals.
