An analyst investigates the composition of a newly manufactured perfumed body spray. Table 1 shows the mass of each ingredient found in a sample of this spray.
Table 1
| Substance | Mass (g\text{g}g) |
|---|---|
| Ethanol | 122.5122.5122.5 |
| Water | 48.248.248.2 |
| Fragrance oils | 6.86.86.8 |
| Glycerol | 2.52.52.5 |
What general chemical term is given to a mixture that has been designed as a useful product, such as this body spray?
Calculate the percentage by mass of ethanol in this sample of the body spray. Give your answer to 1 decimal place.
Ethanol can be oxidized to form ethanoic acid. What type of reagent reacts with ethanol to bring about this change?
28 exam-style questions on AQA GCSE Chemistry 8.1 Purity, formulations and chromatography, covering 8.1.1 Pure substances, 8.1.2 Formulations, and 8.1.3 Chromatography. Each one has a worked solution and a mark scheme showing where the marks go.