In an investigation into the neutralisation of acids, a student added solid calcium hydroxide, Ca(OH)2\text{Ca(OH)}_2Ca(OH)2, in 0.1 g portions to a beaker containing 50 cm3 of dilute hydrochloric acid.
Explain why the mixture was stirred thoroughly after each addition of calcium hydroxide before the pH was measured.
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.
