A marine propeller made of cupronickel (a copper-nickel alloy) has a total mass of 125.0 kg. The alloy contains 18.0% by mass of nickel, with the remaining mass being copper.
Calculate the mass of copper in this propeller.
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.