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many cars are fitted with airbags which inflate in an accident. Airbags contain solid sodium azide, NaN₃, which decomposes rapidly to form sodium and nitrogen. The nitrogen formed fills the air bags. Can someone please solve part b and c. I'll mark brainliest to whoever gets it right!

many cars are fitted with airbags which inflate in an accident Airbags contain solid sodium azide NaN which decomposes rapidly to form sodium and nitrogen The n class=

Respuesta :

The initial balanced equation of decomposition is:

2NaN3 —> 2Na + 3N2

Since 1 mole of a gas occupies 24dm^3 at room temperature and pressure:

72dm^3 / 24dm^3 = 3 moles of Nitrogen which required 2 moles of Sodium Azide.

Since moles = mass/Relative molecular mass or molar mass

2 moles x 65~ g/mol = 130g

For the empirical formula:

Element H N
% Mass 2.33% 97.7%
Mass/Mr 2.33 6.97
2.33 7~

Divide by lowest number

1 3

Therefore empirical formula is

H1N3

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