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
Chemistry
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Chapter1: Chemical Foundations
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Transcribed Image Text:Ethylenediaminetetraacetate(EDTA4) 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 EDTA4 with Hg²* is:
Hg2* (aq) + EDTA*(aq) S H&EDTA²(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
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