why do particles of annomia move along the glass tube?
Answers
Place concentrated ammonia solution on a pad in one end of a tube and concentrated hydrochloric acid on a pad at the other and watch as the two gases diffuse far enough to meet and form a ring of solid ammonium chloride
This demonstration is best performed in a fume cupboard. A black background, such as a sheet of black sugar paper, behind the demonstration helps the white ring to be seen more clearly. Actually performing the demonstration takes only a few minutes.
Equipment
Apparatus
Eye protection (goggles)
Access to a fume cupboard
Protective gloves (preferably nitrile)
A length of glass tube about half a metre long with an inside diameter of about 2 cm (note 1)
Retort stands with bosses and clamps x2
Small wads of cotton wool x2
Bungs x2 (to fit into the ends of the glass tube)
Strip of universal indicator paper (optional)
Answer:
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Explanation:
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