A student carried out a titration to determine the concentration of a sodium hydroxide solution using dilute hydrochloric acid.
Their results are shown in the table below.
| Rough | Titration 1 | Titration 2 | Titration 3 | |
|---|---|---|---|---|
| Final burette reading in cm3\text{cm}^3cm3 | 23.10 | 21.90 | 43.10 | 22.00 |
| Initial burette reading in cm3\text{cm}^3cm3 | 0.50 | 0.30 | 21.90 | 0.50 |
| Volume of acid added in cm3\text{cm}^3cm3 | 22.60 | 21.60 | 21.20 | 21.50 |
Calculate the mean (accurate) volume of hydrochloric acid that should be used in subsequent concentration calculations.
Practise Edexcel GCSE Chemistry Quantitative analysis with exam-style questions for Foundation and Higher tier. 119 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.
