Question

How many liters of nitrogen will be produced from the splitting of 16 grams of ammonium nitrite?

Answer 1

Have:
m(NH₄NO₂) - 16 g.
To find: V(N₂) 
Solve:
16 g            V
NH₄NO₂ → N₂ + 2H₂O
64 g/mol    22,4 l/mol
$V = \frac{16*22,4}{64} = 5,6$ l
Answer: V(N₂) = 5,6 liters