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Commercial Air Bags

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Commercial automobile air bags use a spark to initiate the decomposition of solid sodium azide. NaN3 to nitrogen gas. How many grams of NaN3 must react to make 75.0 L of N2 at 1.oo atm?

A. 14.6 g NaN3
B. 129 g NaN3
C. 1.14 x 10 TO THE POWER OF 3 g NaN3
D. 193 g NaN3
E. 145 g NaN3

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Solution Preview

Step 1: Let's write out the balanced chemical equation:

2 NaN3 -----> 3 N2 + 2 Na

Step 2: Think about what chemical relationship is relevant

Remember the molar volume of an ideal gas? It ...

Solution Summary

The solution calculates the reaction for air bags to work.