Pure gold is 24 carats, but it is often too soft to be used for high-wear jewellery. To increase its hardness and durability, it is alloyed with other metals.
A 14 carat gold antique ring has a total mass of 18 g.
Calculate the mass of the other metals alloyed with the gold in this ring.
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.