A chemist uses a reaction to prepare a dye. The maximum theoretical mass of dye is 12.0 g. After the product is separated and dried, 9.72 g of dye is collected.
Calculate the percentage yield of dye.
Use the equation:
percentage yield =mass of product collectedmaximum theoretical mass×100= \dfrac{\text{mass of product collected}}{\text{maximum theoretical mass}} \times 100=maximum theoretical massmass of product collected×100
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.