Oscarmus Prime
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Consider (calculate) ONLY the nitrogen gas
that comes from the azide in this problem.
Air bags in automobiles contain crystals of
sodium azide (NaN3) which during a colli-
sion decompose rapidly to give nitrogen gas
and sodium metal. Potassium nitrate and sil-
icon dioxide are added to remove the sodium
metal by converting it into a harmless mate-
rial. First, the sodium reacts with potassium
nitrate to produce potassium oxide (K2O),
sodium oxide (Na2O), and additional nitro-
gen gas. The metal oxides (K2O and Na2O)
react with silicon dioxide in a final reaction
to produce silicate glass, which is harmless
and stable. The nitrogen gas liberated by this
process instantly inflates the air bag. Assume
that the nitrogen gas liberated behaves as an
ideal gas and that any solid produced has
a negligible volume (which may be ignored).
Calculate the mass of sodium azide required
to generate enough nitrogen gas to fill a 59 L
air bag at 1.33 atm and 23oC.
Answer in units of g.
i used pv=nrt where r=0.08206 and t=273.15+26
i get an answer of ~131.2227, but it seems to be wrong whenever i submit it. i'd really appreciate some help
that comes from the azide in this problem.
Air bags in automobiles contain crystals of
sodium azide (NaN3) which during a colli-
sion decompose rapidly to give nitrogen gas
and sodium metal. Potassium nitrate and sil-
icon dioxide are added to remove the sodium
metal by converting it into a harmless mate-
rial. First, the sodium reacts with potassium
nitrate to produce potassium oxide (K2O),
sodium oxide (Na2O), and additional nitro-
gen gas. The metal oxides (K2O and Na2O)
react with silicon dioxide in a final reaction
to produce silicate glass, which is harmless
and stable. The nitrogen gas liberated by this
process instantly inflates the air bag. Assume
that the nitrogen gas liberated behaves as an
ideal gas and that any solid produced has
a negligible volume (which may be ignored).
Calculate the mass of sodium azide required
to generate enough nitrogen gas to fill a 59 L
air bag at 1.33 atm and 23oC.
Answer in units of g.
i used pv=nrt where r=0.08206 and t=273.15+26
i get an answer of ~131.2227, but it seems to be wrong whenever i submit it. i'd really appreciate some help