the most important in back titrations is the you keep in mind what the titration is about.
First you need to make the balanced titrationreaction equation. you add an excess of a component. The excess is titrated. So in fact your are determining the amount that didn't react, because the compound that you want to determine has completely reacted.
--> you know what you added and what is left, so in this way you can calculate how many mols of the compound you are interested in has reacted.
Hope this helped you further.
|