
A student has already carried out a rough titration using the apparatus shown in Figure 1 to find the approximate volume of dilute hydrochloric acid needed to neutralise 25.0 cm3 of sodium hydroxide solution.
Describe how the student should now carry out subsequent accurate titrations to obtain a precise, concordant set of results.
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.