In a student's investigation, magnesium hydroxide powder is added in 0.15 g portions to 30 cm3 of dilute hydrochloric acid until the magnesium hydroxide is in excess.
Universal indicator solution is used to determine the pH of the mixture after each portion of magnesium hydroxide is added by comparing the colour to a standard pH colour chart.
State the name of an alternative piece of equipment that can be used to measure the pH of the mixture more accurately.
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.
