A student adds 2.65 g of sodium carbonate to 200 cm3200\,\mathrm{cm^{3}}200cm3 of nitric acid with a concentration of 12.6 g dm−312.6\,\mathrm{g\,dm^{-3}}12.6gdm−3.
Na2CO3(s)+2HNO3(aq)→2NaNO3(aq)+H2O(l)+CO2(g)\mathrm{Na_{2}CO_{3}(s) + 2HNO_{3}(aq) \rightarrow 2NaNO_{3}(aq) + H_{2}O(l) + CO_{2}(g)}Na2CO3(s)+2HNO3(aq)→2NaNO3(aq)+H2O(l)+CO2(g)
(Relative atomic masses: H = 1, C = 12, N = 14, O = 16, Na = 23. One mole of any gas occupies 24 000 cm324\,000\,\mathrm{cm^{3}}24000cm3 at room temperature and pressure.)
Calculate the maximum volume of carbon dioxide that forms at room temperature and pressure.
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.