The manufacture of chloroethane, which is widely used as an industrial solvent and a topical anaesthetic, is carried out by reacting ethene gas with hydrogen chloride gas as shown in the chemical equation below:
C2H4(g)+HCl(g)→C2H5Cl(l) \text{C}_2\text{H}_4\text{(g)} + \text{HCl(g)} \rightarrow \text{C}_2\text{H}_5\text{Cl(l)} C2H4(g)+HCl(g)→C2H5Cl(l)Explain, by referring to the chemical equation, why the theoretical atom economy for this reaction is 100%.
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.