Question

Automotive airbags inflate when sodium azide decomposes explosively to its constituent elements. How many moles of NA are produced by the decomposition of 1.75 mol of sodium azide

Answer 1

2 NaN₃(s) → 2 Na(s) + 3 N₂(g)

From the equation above, Sodium azide has a chemical formula of NaN₃ while nitrogen gas has a chemical formula of N₂.

Therefore, If on decomposition

2 moles of NaN₃ produce 3 moles of N₂

1.75 mol of NaN₃ produce X moles of N₂

X = 1,75 * 3 / 2 = 2.625 mol

ANSWER: 2,625 mol