Question

what is meaning of double titration give 3examples ​

Answer 1

Explanation:

A clarifier is a tank with its central part inclined downwards so as to allow faeces to settle down. The water is then allowed to settle in a large tank which is sloped towards the middle. Solids like faeces settle at the bottom and are removed with a scraper. This is the sludge.

Answer 2

Explanation:

Double titration means two titrations are done in a process. In this process:The first titration is done to standardize the titrant (usually taken in burette).The second titration is used to find the molarity of the titrand (unknown solution and taken in conical flask).For example, we have to calculate molarity of HCl acid by titrating it with NaOH base. But for that NaOH must also be standardized.So for the whole process, we do double titration. First we standardize NaOH by titrating it with a standard oxalic acid solution. And then, we find out the molarity of HCl by titrating it with standardized NaOH solution.