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6.2 Quantitative analysis

6.2 Quantitative analysis

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Question 64

1800 dm3 of dinitrogen pentoxide, measured at room temperature and pressure, decomposed to form nitrogen dioxide and oxygen.

2N2O5(g)→4NO2(g)+O2(g) 2\text{N}_2\text{O}_5(\text{g}) \rightarrow 4\text{NO}_2(\text{g}) + \text{O}_2(\text{g}) 2N2​O5​(g)→4NO2​(g)+O2​(g)

Calculate the maximum mass, in kg, of nitrogen dioxide formed in this reaction. (Relative atomic masses: N=14.0\text{N} = 14.0N=14.0, O=16.0\text{O} = 16.0O=16.0; 1 mol of any gas at room temperature and pressure occupies 24 dm3)

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Markscheme

6.2 Quantitative analysis Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Quantitative analysis

157 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.

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