During an investigation into the neutralisation reaction between dilute hydrochloric acid and calcium hydroxide, a student places a drop of the reacting mixture onto a piece of universal indicator paper.
Describe how the student can determine the pH of the mixture from the indicator paper.
Practise Edexcel GCSE Chemistry Acids 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.