A self-inflating rescue marker contains 150 cm3 of a 0.400 mol dm−30.400\,\mathrm{mol\,dm^{-3}}0.400moldm−3 solution of reactant Q. When the marker is activated, Q reacts completely according to the balanced equation:
2Q(aq)→3G(g)+R(aq)\mathrm{2Q(aq) \rightarrow 3G(g) + R(aq)}2Q(aq)→3G(g)+R(aq)
One mole of gas occupies 24 dm3 at RTP.
Calculate the volume of gas G produced at RTP.
151 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.