Calculate the mass, in kilograms, of 1200 dm3 of butane gas, measured at room temperature and pressure. (relative formula mass: C4H10=58\text{C}_4\text{H}_{10} = 58C4H10=58; 1 mol of any gas at room temperature and pressure occupies 24 dm3)
119 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.