Product P is made in a closed container, so no P can escape. The maximum theoretical mass of P is 10.0 g. The mass of P in the container was measured at different times.
| Time (min) | Mass of P (g) |
|---|---|
| 5 | 5.0 |
| 10 | 6.6 |
| 15 | 7.1 |
| 20 | 7.1 |
Some of each reactant was still present in the container at 20 minutes.
Explain why the mass of P does not reach the maximum theoretical mass.
Use the information given.
104 exam-style questions on AQA GCSE Chemistry 3.3 Yield and atom economy of chemical reactions, covering 3.3.1a Percentage yield, 3.3.1b Theoretical mass of a product, 3.3.2a Atom economy, and 3.3.2b Choosing a reaction pathway. Each one has a worked solution and a mark scheme showing where the marks go.