A student prepares a solution by dissolving 6.4 g of potassium chloride in water and making the volume up to 400 cm3 in a volumetric flask.
Calculate the concentration of the potassium chloride solution in g dm−3\text{g~dm}^{-3}g dm−3.
258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.