(Solved): Ammonium phosphate ((NH4)3PO4) is an important ingredient in many solid fertilizers. It c ...

Ammonium phosphate $$\left({\left({\mathrm{NH}}_4\right)}_3{\mathrm{PO}}_4\right)$$ is an important ingredient in many solid fertilizers. It can be made by reacting aqueous phosphoric acid ( $${\mathrm{H}}_3{\mathrm{PO}}_4)$$ with liquid ammonia. Calculate the moles of phosphoric acid needed to produce $$0.065$$ mol of ammonium phosphate. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.