Rusting can be prevented by galvanising iron, which involves coating the iron with a protective layer of zinc.
A decorative iron garden gate is to be galvanised. The total surface area of the gate is 1.8 m2.
Calculate the mass of zinc required to coat the surface of this gate with a zinc layer of 220 g m-2.
97 exam-style questions on Edexcel GCSE Chemistry 6.1 Transition metals, alloys and corrosion, covering 6.1.1 Properties of transition metals, 6.1.2 Corrosion and its prevention, and 6.1.3 Alloys and the uses of metals. Each one has a worked solution and a mark scheme showing where the marks go.