Question

What kind of reactions takes place between Calcium and EDTA?

Answer 1

Ca2+ ions react to form a stronger complex with the EDTA

Step-by-step explanation:

As a result, when the calcium ion–PR complex is titrated with EDTA the Ca2+ ions react to form a stronger complex with the EDTA. For the titration, the indicator is added to the sample solution containing the calcium ions and forms the pink/red calcium ion-indicator complex (Ca-PR).

Answer 2

Step-by-step explanation:

:Determination of total calcium and magnesium Ion concentration