[填空题]
Sodium azide is an ionic comp+-zgx:+g 5 x9 ixghwxmound found within the airbags of some older(v *t xxpj30d2kgbibdm g5q*. cars. The airjgbkpdxd 0*x2 .3(*q5 mgbvt ibag is deployed as a safety feature in the event of an accident. In this application, the sodium azide decomposes rapidly, and the gas formed inflates the airbag.
The decomposition of sodium azide under these conditions is given below.
$2NaN_{3(s)}\rightarrow2Na (s)+3 N_{2(g)}$
1.Suggest the formula and charge for the azide ion.
2.A typical airbag requires $65.0dm^3$of nitrogen gas for complete inflation at STP. Using section 2 of the data booklet, calculate the mass of sodium azide that the airbag must contain for this purpose.Molar mass for sodium azide calculated= $g mol^{-1}$