The rapid inflation of some vehicle safety airbags relies on the extremely fast thermal decomposition of solid sodium azide, NaN3\text{NaN}_3NaN3, to produce nitrogen gas.
2NaN3(s)→2Na(s)+3N2(g) 2\text{NaN}_3(\text{s}) \rightarrow 2\text{Na}(\text{s}) + 3\text{N}_2(\text{g}) 2NaN3(s)→2Na(s)+3N2(g)Calculate the maximum volume, in cm3\text{cm}^3cm3, of nitrogen gas produced from the decomposition of 52.0 g of sodium azide.
(relative formula mass: NaN3=65.0\text{NaN}_3 = 65.0NaN3=65.0; 1 mol of gas occupies 24 dm3 under the operating conditions of the airbag)
157 exam-style questions on Edexcel GCSE Chemistry 6.2 Quantitative analysis, covering 6.2.1 Concentration in mol dm⁻³ and titration calculations, 6.2.2 Percentage yield and why actual yield falls short, 6.2.3 Atom economy of a reaction, 6.2.4 Choosing a reaction pathway, and 6.2.5 Molar volume of gases and Avogadro's law. Each one has a worked solution and a mark scheme showing where the marks go.