A flame photometer was used to analyse several samples of a river water solution to determine metal ion concentrations. Each sample was prepared by adding 4.00 cm3 of dilute nitric acid. 1.00 dm3 of this nitric acid contains 126 g of nitric acid (hydrogen nitrate, HNO3\text{HNO}_3HNO3).
Calculate the total mass of nitric acid used to prepare 25 samples.
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.