Final answer:
Two molecules of ammonia (NH₃) are required for the complete ionization of one molecule of sulfuric acid (H₂SO₄) as it dissociates fully in water.
Step-by-step explanation:
The question involves understanding the stoichiometry of the reaction between ammonia (NH₃) and sulfuric acid (H₂SO₄). To determine the number of ammonia molecules required for the complete ionization of one molecule of sulfuric acid, we refer to the balanced chemical equation for the reaction.
Sulfuric acid is a strong acid and dissociates completely in water into two hydrogen ions (H+) and one sulfate ion (SO42-). Considering that each molecule of ammonia can provide a pair of electrons to form one ammonium ion (NH4+).
Two ammonia molecules will be required to neutralize one molecule of sulfuric acid by producing two ammonium ions. The equation looks as follows: H₂SO₄ + 2NH₃ → 2NH4+ + SO42- Therefore, two molecules of NH₃ are required for complete ionization of one molecule of H₂SO₄ in water solution.