To calculate the mean titre, you first need to have two concordant titres. Concordant titres are those that are very close in value and can be considered accurate representations of the volume needed to reach the endpoint in a titration.
For example, let's say the two concordant titres are:
- Titre 1: 25.30 mL
- Titre 2: 25.35 mL
To find the mean titre, you would add the two concordant titres together and then divide by 2:
\[ \text{Mean Titre} = \frac{\text{Titre 1} + \text{Titre 2}}{2} \]
\[ \text{Mean Titre} = \frac{25.30 , \text{mL} + 25.35 , \text{mL}}{2} = \frac{50.65 , \text{mL}}{2} = 25.325 , \text{mL} \]
So, the mean titre would be 25.325 mL. If you have specific titres to work with, just follow this method using your provided values!