Answer:
Explanation:
:Determination of total calcium and magnesium Ion concentration
Answer:
Ca2+ ions react to form a stronger complex with the EDTA
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).
