A chemical manufacturer makes product P using either of two routes.
| Route A | Route B | |
|---|---|---|
| Theoretical yield per batch / kg | 480 | 480 |
| Actual yield per batch / kg | 360 | 432 |
| Atom economy | 80% | 60% |
| By-product handling | sold | treated as waste |
Calculate the percentage yield for each route.
Evaluate which route the manufacturer should choose. Use the data in the table and your answers to (a).
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.