In one stage of the Contact Process for making sulfuric acid, sulfur dioxide, SO2\text{SO}_2SO2, is reacted with oxygen to produce sulfur trioxide, SO3\text{SO}_3SO3.
2SO2+O2⇌2SO3 2\text{SO}_2 + \text{O}_2 \rightleftharpoons 2\text{SO}_3 2SO2+O2⇌2SO3Calculate the minimum volume of air, measured at room temperature and pressure, required to react completely with 1280 g of sulfur dioxide.
Assume that air contains 20% oxygen by volume.
(Relative atomic masses, ArA_rAr: S = 32, O = 16; 1 mol of gas occupies 24 dm3 at room temperature and pressure)
Practise Edexcel GCSE Chemistry Quantitative analysis with exam-style questions for Foundation and Higher tier. 119 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
