Answer:
2NH₃(g) + H₂SO₄(g) → (NH₄)₂SO₄(s)
Explanation:
(NH₄)₂SO₄ → Ammonium sulfate
This salt comes from a weak base and a strong acid
Base → Ammonia
Acid → Sulfuric acid
The reaction is:
2NH₃(aq) + H₂SO₄(aq) → (NH₄)₂SO₄(aq)
This is an acid salt; the protons from the acid are gained by the weak base.
As sulfuric is a strong acid, the sulfate is the conjugate weak base (it has no reaction)
As ammonia is a weak base, the ammonium is the conjugate strong acid so in water, it can react as this: NH₄⁺ + H₂O ⇄ NH₃ + H₃O⁺ Ka
Hydroniums are released, that's why it is an acid salt
