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g Though wizards might be able to manage without air-bags, Muggles certainly need them! Air-bags can be inflated by the decomposition of sodium azide, NaN3. At 25.0◦C and 1.10 atm, what volume of N2(g) is produced by the decomposition of 71.4 g NaN3 under the following chemical reaction: 2NaN3(s) → 2Na(l) + 3N2(g) Express your answer in liters

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ted7jet

Answer:

40.293 L

Explanation:

So let's count how much moles of N2 gas we will obtain.

2NaN3(s) → 2Na(l) + 3N2(g)

n(N2)=3/2n(NaN3)=3/2*m(NaN3)/M(NaN3)=3/2*71.4/65.01=1.65 mol

So now we need to use the ideal gas law to count liters.

All numbers must be in Si system

pV=nRT

V=(nRT)/p

V=(1.65*8.314*298)/101457.5=0.040293m3=40.293 L

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