I don\'t understand, please explain. In chelation therapy, a chelating agent, wh

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I don't understand, please explain.

In chelation therapy, a chelating agent, which is a polydentate ligand like EDTA (ethylenediaminetetraacetic acid) is adminstered to remove toxic metals like lead, mercury, cadmium, arsenic from the body. The ligand binds strongly to metal ions, forming a complex ion that is eliminated through the kidneys. The value of the equilibrium constant for formation of the complex ion typically is around 1.0 Times 1025. A 10 mu M concentration of Cd2+ in the blood is considered to be toxic and requires treatment. To demonstrate the effectiveness of chelation therapy, determine the concenration of Cd2+ in the blood after treatment, now in equilibrium with EDTA at a concentration of 50 mu M. 5 Times 10-37 M 2 Times 10-26 M 2 Times 10-20 M 5 Times 10-25 M 2 Times 10-32 M

Explanation / Answer

5*10-32

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