Automotive air bags inflate when a sample of sodium azide, NaN3, is very rapidly decomposed via the following reaction: __NaN3 __ Na(S) + __ N2(g)
What mass of sodium azide is required to produce 73.6 L of nitrogen gas at STP?

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm