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.
Practise Edexcel GCSE Chemistry Transition metals, alloys and corrosion with exam-style questions for Foundation and Higher tier. 97 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.