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One of the reactions used to inflate automobile airbags involves sodium azide (NaN3): 2NaN3(s) ⇨ 2Na(s) + 3N2(g)Determine the mass of N2 produced from the decomposition of NaN3 shown at right

One of the reactions used to inflate automobile airbags involves sodium azide NaN3 2NaN3s 2Nas 3N2gDetermine the mass of N2 produced from the decomposition of N class=

Respuesta :

Step 1

The reaction provided:

2 NaN3 (s) ⇨ 2 Na (s) + 3 N2 (g) (completed and balanced)

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Step 2

Information provided:

100.0 g NaN3 decomposes

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Information needed:

The molar masses of:

NaN3) 65.00 g/mol

N2) 28.00

(please, the periodic table is useful here)

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Step 3

Procedure

By stoichiometry,

2 NaN3 (s) ⇨ 2 Na (s) + 3 N2 (g)

2 x 65.00 g NaN3 ----------------- 3 x 28.00 g N2

100.0 g NaN3 ----------------- X

X = 100.0 g NaN3 x 3 x 28.00 g N2/2 x 65.00 g NaN3

X = 64.62 g

Answer: 64.62 g of N2 produced

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