Automobile air bags inflate during a crash or a sudden stop by the rapid generation of nitrogen gas from sodium azide, according to the reaction:
2 NaN3(s) ----> 2 Na(s) + 3 N2(g)
How many grams of sodium azide are needed to provide sufficient nitrogen gas to fill a 30.0 x 30.0 x 25.0 cm bag to a pressure of 1.20 atm at 1.0 x 10^1 degrees celsius?