An analytical chemist is preparing a standard calibration solution of nickel(II) chloride for a colorimetry experiment. They require 640 cm3 of the solution with a target concentration of 7.5 g dm-3.
Calculate the mass of anhydrous nickel(II) chloride that must be dissolved in distilled water to make 640 cm3 of this solution.
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.