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The average human body contains 5.50 L of blood with a Fe²+ concentration of 3.20x10-5 M. If a person ingests 12.0 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion? Express the percentage numerically.

The average human body contains 5.50 L of blood with a Fe²+ concentration of 3.20x10-5 M. If a person ingests 12.0 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion? Express the percentage numerically.

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter20: Chemistry Of Selected Transition Elements And Coordination Compounds
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The average human body contains 5.50 L of blood with a Fe²+ concentration of 3.20x10-5 M. If a person ingests 12.0 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion? Express the percentage numerically. ► View Available Hint(s) ΠΙΑΣΦ Submit ? % Fe²+
Transcribed Image Text:The average human body contains 5.50 L of blood with a Fe²+ concentration of 3.20x10-5 M. If a person ingests 12.0 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion? Express the percentage numerically. ► View Available Hint(s) ΠΙΑΣΦ Submit ? % Fe²+
When species combine to produce a coordination complex, the equilibrium constant for the reaction is called is the formation constant, Kf. For example, the iron (II) ion, Fe²+, can combine with the cyanide ion, CN-, to form the complex [Fe(CN)6] according to the equation Fe²+ (aq) + 6CN- (aq) = [Fe(CN)6]¹—(aq) = 4.21 × 1045. where Kf = This reaction is what makes cyanide so toxic to human beings and other animals. The cyanide ion binds to the iron that red blood cells use to carry oxygen around the body, thus interfering with the blood's ability to deliver oxygen to the tissues. It is this toxicity that has made the use of cyanide in gold mining controversial. Most states now ban the use of cyanide in leaching gold out of low-grade ore.
Transcribed Image Text:When species combine to produce a coordination complex, the equilibrium constant for the reaction is called is the formation constant, Kf. For example, the iron (II) ion, Fe²+, can combine with the cyanide ion, CN-, to form the complex [Fe(CN)6] according to the equation Fe²+ (aq) + 6CN- (aq) = [Fe(CN)6]¹—(aq) = 4.21 × 1045. where Kf = This reaction is what makes cyanide so toxic to human beings and other animals. The cyanide ion binds to the iron that red blood cells use to carry oxygen around the body, thus interfering with the blood's ability to deliver oxygen to the tissues. It is this toxicity that has made the use of cyanide in gold mining controversial. Most states now ban the use of cyanide in leaching gold out of low-grade ore.
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