[填空题]
Automobile airbags a9nl b2m-xz,hv 8b 3*i; elnd1r.gdjty r hlk)8 m2 rbc pj/chbclfj79w0/1*wq oe 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
