Question

Ammonia gas conbines with excess oxygen gas to produce nitric oxide and water. How many grams of ammonia gas would have to react in order to release 363kJ of energy? 4N

Answer 1

The mass of ammonia gas is 36.4 grams.

Step-by-step explanation:

Ammonia gas combines with excess oxygen gas to produce nitric oxide and water.

The chemical reaction is as follows.

`4NH_(3)+5O_(2)\rightarrow 4NO+6H_(2)O`

The
`\Delta H^(o)` of the reaction is -1170 kJ.

When 363 kJ energy is released .

`Moles\,of\,\,ammonia=363kJ* ((4)/(1170))=1.24mols`

`Mass\,of\,ammonia=Moles* molarmass`

`Mass\,of\,ammonia=0.124* 17.03g/mol=36.4g`

Therefore, The mass of ammonia gas is 36.4 grams.