(a) Why is a small amount of MgY2- often added to a water specimen that is to be titrated for hardness? (b) The TI in a 9.76g sample of redenticide was oxidised to the trivalent state and treated with an unmeasured excess of Mg/EDTA solution. the reaction is TI3 + MgY2- ---> TIY + Mg2+. Titration of the liberated Mg2+ required 13.34mL of 0.03560 M EDTA. Calculate the percentage of TISO4 (504.8 g/mol) in the sample.
(a) Why is a small amount of MgY2- often added to a water specimen that is to be titrated for hardness? (b) The TI in a 9.76g sample of redenticide was oxidised to the trivalent state and treated with an unmeasured excess of Mg/EDTA solution. the reaction is TI3 + MgY2- ---> TIY + Mg2+. Titration of the liberated Mg2+ required 13.34mL of 0.03560 M EDTA. Calculate the percentage of TISO4 (504.8 g/mol) in the sample.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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(a) Why is a small amount of MgY2- often added to a water specimen that is to be titrated for hardness? (b) The TI in a 9.76g sample of redenticide was oxidised to the trivalent state and treated with an unmeasured excess of Mg/EDTA solution. the reaction is TI3 + MgY2- ---> TIY + Mg2+.
Titration of the liberated Mg2+ required 13.34mL of 0.03560 M EDTA. Calculate the percentage of TISO4 (504.8 g/mol) in the sample.
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