An environmental chemist is monitoring the acidity of runoff water from an active quarry. The chemist collects a sample of the water and intends to find its pH using dry universal indicator paper.
Describe how the chemist can determine the pH value of the runoff water sample using this indicator paper.
Practise Edexcel GCSE Chemistry Acids with exam-style questions for Foundation and Higher tier. 276 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.
