If excess ammonium sulfate reacts with 20.0g of calcium hydroxide how many grams of ammonia are produced

The reaction between ammonium sulfate and calcium hydroxide is given below.

(NH₄) ₂SO₄ + Ca (OH) ₂ - - > 2NH₃ + CaSO₄ + 2H₂O

From the balance equation, we can conclude that every 74 g of calcium sulfate reacted with enough amount of ammonium sulfate will yield 34 grams of ammonia. From the given amount,

(20 g calcium sulfate) x (34 grams ammonia / 74 g calcium sulfate)

= 9.19 g ammonia