Question

Importance of buffer solution in complexometric titration

Answer 1

It has four carboxyl groups and two amine groups that can act as electron pair donors (Lewis bases). EDTA is often used as the disodium salt, Na2H2Y . Carrying out the reaction in a basic buffer solution removes the H+ as it is formed. ... The metal ions will not have to remove the hydrogen ions from H2Y2- .

Answer 2

Answer:

EDTA

Direct Titration- It is the most convenient and simple method of complexometric titration using EDTA. It is similar to acid-base titration technique. In this titration standard EDTA solution is added to given sample containing metals using burette till the end point is achieved.