First published at 00:08 UTC on January 16th, 2021.
A microscale test for Ammonium salts in a petridish.
1) Place a piece of paper under the Petri dish to help with visibility.
2) Place a red litmus paper in the inside Petri dish and dampen with distilled water.
3) Then add 2 drops of 0.1M Ammoniu…
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A microscale test for Ammonium salts in a petridish.
1) Place a piece of paper under the Petri dish to help with visibility.
2) Place a red litmus paper in the inside Petri dish and dampen with distilled water.
3) Then add 2 drops of 0.1M Ammonium salt (ammonium nitrate in this case).
4) Now add 2 drops of 0.4M Sodium Hydroxide onto the same spot as the Ammonium salt drops.
5) Gently stir (I used a wooden splint) and cover the Petri dish.
6) Wait for the red litmus paper to turn blue as Ammonia gas is produced and diffuses to the damp litmus paper.
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