The mass of sodium azide required to decompose and produce the number of moles of nitrogen calculated to get 0.016 is 0.011moles.
The number of moles of a substance can be calculated stoichiometrically as follows:
According to this question, sodium azide decomposes to produce sodium and nitrogen gas as follows:
2NaN3 → 2Na + 3N2
2 moles of sodium azide produces 3 moles of N2
This means that 0.016 moles of N2 will be produced by 0.016 × 2/3 = 0.011moles of NaN3.
Therefore, the mass of sodium azide required to decompose and produce the number of moles of nitrogen calculated to get 0.016 is 0.011moles.
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