1. Reaction:
(NH₄)₂SO₄(aq) + 2KOH(aq) → K₂SO₄(aq) + 2NH₃(g) + 2H₂O(l)
2. Explanation:
* Ammonium sulfate ((NH₄)₂SO₄) is a soluble salt that dissociates in solution into ammonium ions (NH₄⁺) and sulfate ions (SO₄²⁻).
* Potassium hydroxide (KOH) is a strong base that dissociates in solution into potassium ions (K⁺) and hydroxide ions (OH⁻).
* The ammonium ions (NH₄⁺) react with the hydroxide ions (OH⁻) to form ammonia gas (NH₃) and water (H₂O). This is a neutralization reaction.
* The potassium ions (K⁺) and sulfate ions (SO₄²⁻) remain in solution, forming potassium sulfate (K₂SO₄), which is also soluble.
3. Observations:
* You would likely observe bubbles forming in the solution. This is due to the release of ammonia gas.
* The solution might also become slightly warm due to the exothermic reaction between ammonium ions and hydroxide ions.
4. Overall, the reaction produces:
* Potassium sulfate (K₂SO₄), which remains dissolved in the solution.
* Ammonia gas (NH₃), which is released into the air.
* Water (H₂O).
Important Note: Ammonia gas has a pungent odor and can be irritating. It's important to perform this reaction in a well-ventilated area.
