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19 August, 09:21

Automotive air bags inflate when sodium azide decomposes explosively to its constituent elements:

2NaN3 (s) → 2Na (s) + 3N2 (g)

How many moles of N2 are produced by the decomposition of 1.25 mol of sodium azide?

a) 4.32

b) 8.64

c) 1 ... e2

d) 1.44

e) 0.960

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Answers (1)
  1. 19 August, 10:28
    0
    1.875 moles of N₂ produced from 1.25 moles of sodium azide.

    Explanation:

    Given dа ta:

    moles of sodium azide = 1.25 mol

    moles of N₂ produced = ?

    Balance chemical equation:

    2NaN₃ (s) → 2Na (s) + 3N₂ (g)

    Now we compare the moles of sodium azide and N₂ from balance chemical equation,

    NaN₃ : N₂

    2 : 3

    1.25 : 3/2*1.25 = 1.875

    1.875 moles of N₂ produced from 1.25 moles of sodium azide.
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