When sodium azide is activated in an auto- mobile airbag, nitrogen gas and sodium are
produced according to the equation
2 NaN3(s) - 2 Na(s) + 3 N2(g).
If 0.8 mol of NaN3 reacts, how many moles
of nitrogen would result?
Answer in units of mol.
What is the mass of the Nitrogen gas? Answer in units of g.

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).