For N2+3H2→2NH3\mathrm{N_2+3H_2\rightarrow2NH_3}N2+3H2→2NH3, what volume of hydrogen reacts with 10 dm3 nitrogen at the same conditions?
5 dm35\,\mathrm{dm^3}5dm3
30 dm330\,\mathrm{dm^3}30dm3
10 dm310\,\mathrm{dm^3}10dm3
20 dm320\,\mathrm{dm^3}20dm3
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.