What is the mass of
22.4 litres of ammonia

17g

Explanation:

Using the relation :

Volume = mass / molar mass

Volume of ammonia = 22.4 litres

Mole of gas at stp :

1 M of NH3 = 22.4 litres

Chemical formula for ammonia = NH3

The molar mass :

NH3 =14 + (1*3) = 14 + 3 = 17

Volume of ammonia = 1 M

Mass = volume * molar mass

Mass = 1 * 17

Mass = 17g

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.