Question

Ammonium phosphate [(NH4)3(PO4)] is an important ingredient in many solid fertilizers. It can be made by reacting aqueous phosphoric acid H3PO4 with liquid ammonia. Calculate the moles of ammonium phosphate produced by the reaction of 1.50mol of ammonia.

Answer 1

The correct answer is 0.50 mol (NH₄)₃PO₄

Step-by-step explanation:

The balanced chemical equation between liquid ammonia (NH₃) and H₃PO₄ is the following:

3 NH₃ + H₃PO₄ → (NH₄)₃PO₄

According to the equation, 3 mol of ammonia produce 1 mol of ammonium phosphate. Thus, the stoichiometric ratio is 1 mol (NH₄)₃PO₄/3 NH₃. To calculate the moles of (NH₄)₃PO₄, we multiply the ratio by 1.50 mol NH₃:

1.50 mol NH₃ x 1 mol (NH₄)₃PO₄/3 NH₃ = 0.50 mol (NH₄)₃PO₄