An air bag needs 60 dm3 of gas to inflate it at 25°C. Calculate: 1.1 the number of moles of N2 gas at 298 K required to inflate the air bag to a pressure of 1 atm. (7) 1.2 the number of moles of NaN3 required to produce this amount of gas (Hint: NaN3 reacts to produce Na(s) and N2(g). (5) 1.3 the mass of NaN3 required.
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