Question

Ammonium phosphate ((NH), PO) is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid (TI,PO.) with ammonia (NH) What mass of ammonium phosphate is produced by the reaction of 7.5 g of ammonia? Be sure your answer has the correct number of significant digits.

Answer 1

Answer:

22.35 g of  (NH₄)₃PO₄ will be produced by 7.5 g of ammonia.

Explanation:

H₃PO₄ + 3NH₃  → (NH₄)₃PO₄

H₃PO₄: 98 g/mol

NH₃: 17 g/mol

(NH₄)₃PO₄: 149 g/mol

17 g NH₃ _________ 1 mol

7.5 g NH₃ __________ x

  x = 0.44 mol NH₃

3 mol NH₃ __________ 1 mol (NH₄)₃PO₄

0.44 mol NH₃ _________           y

     y = 0.15 mol (NH₄)₃PO₄

1 mol (NH₄)₃PO₄ ____________ 149 g

0.15 mol (NH₄)₃PO₄ __________    z

          z = 22.35 g (NH₄)₃PO₄