A 20.0 ml. sample of 0.0250 M Cu²+ buffered at pH 10.00 is titrated with 0.0200 M EDTA. Calculate pCu² at each of the added volumes of EDTA. For the Cu²+-EDTA complex, log Kr is 18.78. The fraction of free EDTA in the Y- form, ay, can be found in this table.

A 20.0 ml. sample of 0.0250 M Cu²+ buffered at pH 10.00 is titrated with 0.0200 M EDTA. Calculate pCu² at each of the added volumes of EDTA. For the Cu²+-EDTA complex, log Kr is 18.78. The fraction of free EDTA in the Y- form, ay, can be found in this table.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.19QAP

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O Macmillan Learning
A 20.0 mL sample of 0.0250 M Cu²+ buffered at pH 10.00 is titrated with 0.0200 M EDTA. Calculate pCu² at each of the
added volumes of EDTA. For the Cu²+-EDTA complex, log Kr is 18.78. The fraction of free EDTA in the Y- form, ay, can
be found in this table.
0 mL pCu²+ = =
8.33 ml. pCu²+
x10
25.0 ml. pCu²+ =
30.0 mL pCu²+ =
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