A car air bag requires 70. L, or 3.125 moles, of nitrogen gas to inflate properly. The following equation represents the production of nitrogen gas:
2NaN3(s) =>2Na(s) + 3N2(g)
How many grams of NaN3 must be used to generate the amount of N2 necessary to properly inflate the air bag?
[atomic masses: Na = 22.990, N = 14.007; molar volume of any gas = 22.4 liters]