A sachet of premium anti-fungal crop powder has a total mass of 3.20 g and contains 450 mg of copper sulfate as the active fungicide.
Powders of this type are examples of mixtures designed with exact quantities of specific substances to serve a particular function. What chemical term is used to describe this type of mixture?
Calculate the percentage by mass of copper sulfate in this crop powder sachet.
Show your working and give your answer to 3 significant figures.
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.