Two production batches use the same balanced equation to make the same desired product. Each batch has a theoretical yield of 80 g. Batch A produces 56 g of pure, dry product and batch B produces 68 g.
Compare the percentage yields of the two batches and explain why their atom economies are the same.
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.