Chromium is extracted from chromium(III) oxide, Cr2O3\text{Cr}_2\text{O}_3Cr2O3. Suppose 75.0 kg of chromium(III) oxide produces a maximum of 51.3 kg of chromium. In an extraction process, only 44.5 kg of chromium is produced from 75.0 kg of chromium(III) oxide. Calculate the percentage yield of chromium. Give your answer to 3 significant figures. Use the equation:
percentage yield=mass of product actually mademaximum theoretical mass of product×100 \text{percentage yield} = \frac{\text{mass of product actually made}}{\text{maximum theoretical mass of product}} \times 100 percentage yield=maximum theoretical mass of productmass of product actually made×10031 exam-style questions on AQA GCSE Chemistry 3.3 Yield and atom economy of chemical reactions, covering 3.3.1 Percentage yield and 3.3.2 Atom economy. Each one has a worked solution and a mark scheme showing where the marks go.