Question

QUESTION 3 Automobile airbags use the decomposition of sodium azide, NaN3, to provide gas for rapid inflation: 2 NaN3(s) → 2 Na(s) + 3 N2(g). Using stoichiometry and the ideal gas law, calculate the mass (in g) of NaN3 required to provide 27.2 L of N2(g) at 44 °C and 1.00 atm? QUESTION 4 Consider the reaction between hydrogen gas and oxygen gas to form water: 2 H2(g) + O2(g) + 2 H20(9). How many grams of water could be produced by the reaction of 3.3 liters of hydrogen with 4.11 liters of oxygen at STP? (Hint: check for limiting reagent).

Answer 1

= PV RT = (latm) (27.26) (0.0821 Lath-molk-))( 44+273)* hol n = 1.04512078 moles let al be 1.045 12078 the moles mass of of NaNo N. required

3 2 X 65 g of NaNz gives (x' g of NaNz gives moles of N. 1-04512078 meoles of N. Cross multiply 2X65X 1.045 12078= 3x x = 45.288569 of NaN