1. Balanced Chemical Equation:

First, ensure the chemical equation is balanced:

2 NH₃ + H₂SO₄ → (NH₄)₂SO₄

2. Mole Ratio:

The balanced equation shows that 2 moles of NH₃ react with 1 mole of H₂SO₄ to produce 1 mole of (NH₄)₂SO₄.

3. Calculate Moles of (NH₄)₂SO₄:

Since you have 30.0 mol of NH₃, you can use the mole ratio to find the moles of (NH₄)₂SO₄:

(30.0 mol NH₃) * (1 mol (NH₄)₂SO₄ / 2 mol NH₃) = 15.0 mol (NH₄)₂SO₄

Therefore, you can make 15.0 moles of ammonium sulfate from 30.0 moles of ammonia.