A technician uses a solution of sodium fluoride, NaF\text{NaF}NaF, with a concentration of 0.250 mol/dm3. The relative formula mass of sodium fluoride is 42.0. The technician needs to prepare three identical samples, each containing 1.11 g of sodium fluoride. The stock bottle contains 300 cm3 of the solution.
Calculate the total volume of solution needed in cm3\text{cm}^3cm3.
Use your answer to decide whether the stock bottle contains enough solution for all three samples. Give a reason for your answer.
106 exam-style questions on AQA GCSE Chemistry 3.4 Using concentrations of solutions in mol/dm3, covering 3.4.1 Concentration in mol/dm3. Each one has a worked solution and a mark scheme showing where the marks go.