During an analytical procedure to determine the concentration of a standard hydrochloric acid (HCl\text{HCl}HCl) solution, a technician cleanses a volumetric pipette using demineralised water.
Before transferring a 25.0 cm325.0\text{ cm}^325.0 cm3 aliquot of the hydrochloric acid to the titration flask, the technician rinses the internal surfaces of the pipette with a small volume of the hydrochloric acid solution.
Explain why rinsing the pipette with the hydrochloric acid solution is a necessary step to ensure an accurate 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.
