An analytical chemist performs a titration to determine the concentration of a potassium hydroxide solution. They pipette 25.0 cm3 of the potassium hydroxide solution into a conical flask and add a few drops of phenolphthalein indicator. Dilute nitric acid is then added slowly from a burette until the reaction mixture just reaches its endpoint.
State the colour change of the phenolphthalein in the conical flask during this titration.
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.
