State the maximum volume of ethene, in dm3\text{dm}^3dm3, that can be formed by the dehydrogenation of 250 dm3 of ethane.
(Assume all volumes of gases are measured under the same conditions of temperature and pressure.)
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.