A standard laboratory solution of potassium manganate(VII) has a concentration of 23.70 g dm-3.
Calculate the number of moles of potassium manganate(VII), KMnO4\text{KMnO}_4KMnO4, in 120.0 cm3 of this solution.
(Relative atomic masses: O=16.0\text{O} = 16.0O=16.0, K=39.0\text{K} = 39.0K=39.0, Mn=55.0\text{Mn} = 55.0Mn=55.0)
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.