# How do ammonia and phosphoric acid react?

Jul 4, 2017

What is present in many fertilizers is $\text{DAP}$, $\text{diammonium phosphate.........}$

#### Explanation:

And $\text{DAP}$ $=$ ${\left(N {H}_{4}\right)}_{2} H P {O}_{4}$.........

And thus the stoichiometric reaction.....

${H}_{3} P {O}_{4} \left(a q\right) + 2 N {H}_{3} \left(a q\right) \rightarrow {\left(N {H}_{4}\right)}_{2} H P {O}_{4} \left(a q\right)$

$\text{Moles of ammonia} = \frac{2.28 \cdot g}{17.03 \cdot g \cdot m o {l}^{-} 1} = 0.134 \cdot m o l .$

And thus it will react with $0.134 \cdot m o l \times \frac{1}{2} \times 98.08 \cdot g \cdot m o {l}^{-} 1$ $= 6.56 \cdot g$

${\left(N {H}_{4}\right)}_{3} P {O}_{4}$ is UNKNOWN under normal conditions.