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Effect of pH on the EDTA titration. Use Equation 11-11 to compute curves (pCa2 versus mL

Chapter 11, Problem 11-12

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QUESTION:

Effect of pH on the EDTA titration. Use Equation 11-11 to compute curves (pCa2 versus mL of EDTA added) for the titration of 10.00 mL of 1.00 mM Ca2 with 1.00 mM EDTA at pH 5.00, 6.00, 7.00, 8.00, and 9.00. Plot all curves on one graph and compare your results with Figure 11-10. 1

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QUESTION:

Effect of pH on the EDTA titration. Use Equation 11-11 to compute curves (pCa2 versus mL of EDTA added) for the titration of 10.00 mL of 1.00 mM Ca2 with 1.00 mM EDTA at pH 5.00, 6.00, 7.00, 8.00, and 9.00. Plot all curves on one graph and compare your results with Figure 11-10. 1

ANSWER:

Step 1 of 3

The phi  during the complexometric titration is defined as:

                     

where,

M is the concentration of metal,

 is the concentration of ligand

 is the formation constant

V is the volume of the ligand

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