Question

Why we use buffer solution in complexometric titration?

Answer 1

EDTA is often used as the disodium salt, Na2H2Y . Carrying out the reaction in a basicbuffer solution removes the H+ as it is formed. ... Thus, if the solution is buffered to about pH 10.3, most of the EDTA will exist as Y4- ions.

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.