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The average human body contains 5.70 L of blood with a Fe2+ concentration of 2.10×10−5M ....

The average human body contains 5.70 L of blood with a Fe2+ concentration of 2.10×10−5M . If a person ingests 10.0 mL of 25.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion?

Express the percentage numerically.

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