Chemistry question help.Watch this thread
One method used to inflate air bags in cars is to use nitrogen produced chemically from the decomposition of sodium azide:
2NaN3(s) = 2Na(s) +3N2(g) (equation 1)
The sodium formed reacts with potassium nitrate to give more nitrogen:
10Na + 2KNO3(s) = K2O(s) +5Na2O(s) + N2(g) (equation 2)
a) In what ratio (by mass) must the sodium azide and potassium nitrate be mixed in order that no metallice sodium remains after th reaction.
b) Calculate the total mass of the solid mixture needed to inflate a 60dm^3 air bag at room temperature and atmospheric pressure.
Note: be careful with the 60dm^3, the unit for volume in the ideal gas equation is m^3.