Answer:
Number of moles of ammonia to produced Ammonium phosphate=3
Explanation:
First balance the chemical reaction between aqueous phosphoric acid and liquid ammonia
H3PO4 (aq) + 3NH3 (l) = (NH4)3PO4
From the balanced above reaction it is clearly that,
1 mole of aqueous phosphoric acid reacts with 3 mole of liquid ammonia to form 1 mole of ammonium phosphate
Hence,
Number of moles of ammonia to produced Ammonium phosphate=3