A balanced equation shows that, for the quantities used, each batch could form 80 g of products in total. The theoretical yield of the desired product is 48 g for each batch.
The table shows the actual yield of pure, dry desired product obtained from each batch.
| Batch | Actual yield of desired product / g\mathrm{g}g |
|---|---|
| A | 36 |
| B | 24 |
Calculate the percentage yield for each batch.
Explain whether the difference in percentage yield between the batches changes the atom economy of the reaction. Use the data to support your answer.
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.