A process for making sulfur trioxide uses the reaction: 2SO2+O2→2SO3\mathrm{2SO_{2}} + \mathrm{O_{2}} \rightarrow \mathrm{2SO_{3}}2SO2+O2→2SO3. The amounts of the reactants in a vessel are shown in the table.
| Reactant | Amount |
|---|---|
| SO2\mathrm{SO_{2}}SO2 | 0.80 mol |
| O2\mathrm{O_{2}}O2 | 0.30 mol |
Calculate the maximum amount of SO3\mathrm{SO_{3}}SO3 that can form.
142 exam-style questions on Edexcel GCSE Chemistry 2.6 Calculations involving masses, covering 2.6.1 Relative formula mass and percentage composition, 2.6.2 Empirical and molecular formulae, 2.6.3 Conservation of mass, 2.6.4 Reacting masses and concentration in g dm⁻³, 2.6.5 The mole and the Avogadro constant, and 2.6.6 Limiting reactants and stoichiometry. Each one has a worked solution and a mark scheme showing where the marks go.