[填空题]
Automobile airbags are yb(m.53f c r84uhdm0xuxd t8y ak+j -lhs i8w8uko5-s inflated with $N_2$, a byproduct of sodium azide decomposition, according to the following reaction.
$2NaN_{3(s)}\rightarrow2 Na_{(s)}+3N^{2(g)}$
Calculate the mass (in grams) of sodium azide needed to generate $0.07m^3$ of $N^2$ at $1.01\times10^{5}Pa$ and $26.0^{\circ}C$.$n_{N2}$= mol, mass of $NaN_3$= g
