Question

Ammonium phosphate is an important ingredient in many solid fertilizers. It can be made by reacting aqueous phosphoric acid with liquid ammonia. Calculate the moles of ammonium phosphate produced by the reaction of of ammonia. Be sure your answer has a unit symbol, if necessary, and round it to significant digits.

Answer 1

The given question is incomplete. The complete question is:

Ammonium phosphate $(NH_4)_3PO_4$ is an important ingredient in many solid fertilizers. It can be made by reacting aqueous phosphoric acid $H_3PO_4$ with liquid ammonia. Calculate the moles of ammonium phosphate produced by the reaction of 1.7 mol of ammonia. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.  

Answer: 0.57 moles of ammonium phosphate are produced by the reaction of 1.7 moles of liquid ammonia

Explanation:

The balanced chemical equation is:

$H_3PO_4+3NH_4OH\rightarrow (NH_4)_3PO_4+3H_2O$

According to stoichiometry:

3 moles of liquid ammonia $(NH_4OH)$ produces = 1 mole of ammonium phosphate $(NH_4)_3PO_4$

Thus 1.7 moles of liquid ammonia $(NH_4OH)$ produces = $\frac{1}{3}\times 1.7=0.57$ mole of ammonium phosphate $(NH_4)_3PO_4$

Thus 0.57 moles of ammonium phosphate are produced by the reaction of 1.7 moles of liquid ammonia