A student recorded the pH of a hydrochloric acid solution as potassium hydroxide solution was added during a titration experiment.
The results are shown in the graph below.
Using the graph, state the pH of the acid at the start of the titration, before any potassium hydroxide solution was added.
Acids Questions
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.