A descaler is a solution that contains citric acid.
250 cm3250\text{ cm}^3250 cm3 of the descaler solution contains 15 g15\text{ g}15 g of citric acid.
Calculate the mass of citric acid in 1.0 dm31.0\text{ dm}^31.0 dm3 of the descaler solution.
38 exam-style questions on AQA GCSE Chemistry 3.2 Use of amount of substance in relation to masses of pure substances, covering 3.2.1 Moles (HT only), 3.2.2 Amounts of substances in equations (HT only), 3.2.3 Using moles to balance equations (HT only), 3.2.4 Limiting reactants (HT only), and 3.2.5 Concentration of solutions. Each one has a worked solution and a mark scheme showing where the marks go.