Automobile Air Bags Use the Decomposition of Sodium Azide as Their

Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation:
2NaN₃ (s) - 2Na (s) + 3N₂ (g) .
What mass (g) of NaN₃ is required to provide 40.0 L of N₂ at 25.0 °C and 763 torr?

A) 1.09
B) 160
C) 1.64
D) 71.1
E) 107