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2NaN(3) > 2 Na +3N(2)

What mass of sodium azide must be reacted to inflate and air bag to 70.0 L at STP?

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mols 70.0L x (22.4L/mol) = ? mols N2
Convert mols N2 to mols NaN3 using the coefficients in the balanced equation.
Now convert mols NaN3 to g. g NaN3 = mols NaN3 x molar mass NaN3

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