Ethylenediaminetetraacetate(EDTA*) is used as a complexing agent. Solutions of EDTA¯* are used to treat heavy metal poisoning by removing the heavy metal in the form of a soluble complex ion. The complex ion virtually eliminates the heavy metal ions from reacting with biochemical systems. The reaction of EDTAd with Hg²* is: Hg2* (aq) + EDTA*(aq) S H9EDTA²(aq) Kr = 6.3x1021 Consider a solution that is 0.050 M Hg(NO3)2 buffered to pH = 11.00 and containing 0.50 M Na,EDTA. Does Hg(OH)2 precipitate from the solution? Ksp Hg(OH)2 = 3.0x10 26

Ethylenediaminetetraacetate(EDTA) is used as a complexing agent. Solutions of EDTA¯ are used to treat heavy metal poisoning by removing the heavy metal in the form of a soluble complex ion. The complex ion virtually eliminates the heavy metal ions from reacting with biochemical systems. The reaction of EDTAd with Hg²* is: Hg2* (aq) + EDTA*(aq) S H9EDTA²(aq) Kr = 6.3x1021 Consider a solution that is 0.050 M Hg(NO3)2 buffered to pH = 11.00 and containing 0.50 M Na,EDTA. Does Hg(OH)2 precipitate from the solution? Ksp Hg(OH)2 = 3.0x10 26

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 72AP

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