The theoretical maximum yield of copper(II) oxide in a thermal decomposition reaction was 2.45 g.
The actual yield of copper(II) oxide obtained was 1.96 g.
Calculate the percentage yield of copper(II) oxide. Give your answer to 3 significant figures.
Practise Edexcel GCSE Chemistry Quantitative analysis with exam-style questions for Foundation and Higher tier. 100 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.