Hazards
Both HCl and Ammonium Hydroxide are corrosive and toxic. Avoid exposure.
Chemicals and Solutions
- Conc. HCl (hydrochloric acid)
- Conc. NH₄OH (aqueous ammonia)
Materials
Special 250 ml Erlenmeyer flasks with 34/35 and special stopper with fritted glass tips (2)
Procedure
Remove the fritted glass stopper from the HCl flask and "waft" the tip near the opening of the ammonia flask. A white cloud of ammonium chloride will form.
\( \ce{ NH3_{(g)} + HCl_{(g)} -> NH4Cl_{(s)} } \)