34.53 g of NaN₃ are required to fully inflate an airbag of 11.9 L at STP.
In airbags, sodium azide decomposes to form sodium and nitrogen gas, which inflates the bag. The decomposition reaction is:
2 NaN₃ ⇒ 2 Na + 3 N₂
We can calculate the mass of NaN₃ needed to produce 11.9 L of N₂ at STP, using the following relations.
Number of moles of NaN₃ = mass (m)/MW = m/65 mole
I mole of NaN₃ requires 22.4L air bag
m/65 mole of NaN₃ required 11.9L
22.4m/65 = 11.9
22.4m = 65×11.9
22.4m = 773.5
mass = 773.5/22.4 = 34.53 grams of NaN₃
Therefore, 34.53 g of NaN₃ are required to fully inflate an airbag of 11.9 L at STP.
To learn more about the mass of NaN₃, refer: brainly.com/question/11676583
