A technician makes a solid product in a reaction. The table shows the masses of product the technician recorded before and after drying it.
| Measurement | Mass in g |
|---|---|
| Mass of product before drying | 63.0 |
| Mass of product after drying | 57.0 |
The technician correctly calculated the percentage yield of the product as 76.0 %.
Calculate the maximum theoretical mass of the product.
Explain why calculating the percentage yield using the mass before drying would give an inaccurate value.
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.