How do ammonia and phosphoric acid react?

1 Answer
anor277
Jul 4, 2017

What is present in many fertilizers is #"DAP"#, #"diammonium phosphate........."#

Explanation:

And #"DAP"# #=# #(NH_4)_2HPO_4#.........

And thus the stoichiometric reaction.....

#H_3PO_4(aq) + 2NH_3(aq) rarr (NH_4)_2HPO_4(aq)#

#"Moles of ammonia"=(2.28*g)/(17.03*g*mol^-1)=0.134*mol.#

And thus it will react with #0.134*molxx1/2xx98.08*g*mol^-1# #=6.56*g#

#(NH_4)_3PO_4# is UNKNOWN under normal conditions.

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