A student prepares a solid product and collects it on a dry filter paper.
| Quantity | Mass / g |
|---|---|
| dry filter paper | 1.36 |
| dry filter paper and product | 5.56 |
| theoretical yield of product | 5.00 |
Calculate the percentage yield of the product.
In another preparation, the product is weighed before it has dried completely. Explain why this could produce a calculated percentage yield greater than 100%.
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.