bund in the human body? e Choose one or more: O HCOO /COO-;Ka = 1.77×10-4 O H3PO4/H2PO42-; Ka = 6.9x10-3 %3! O HN O2/N O2";Ka = 4.00×10-4

Chemistry for Today: General, Organic, and Biochemistry
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Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
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Chapter9: Acids, Bases, And Salts
Section: Chapter Questions
Problem 9.153E: A substance that functions to prevent rapid, drastic changes in the pH of a body fluid by changing...
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Acid-base buffers are vital components of living systems because most biochemical reactions involved in life-sustaining processes take place only within a narrow pH range near neutral pH.

 

 

 

Given the following conjugate acid-base pairs and their Ka values at 25°C, which of the following acid-base buffer systems might be
found in the human body?
Choose one or more:
O HCOO /CO0-; Ka = 1.77x10-4
H3PO4/H2PO42-; Ka = 6.9x10-3
%3D
HN O2/N O2" ; Ka = 4.00x10-4
O C6H5COO H/C6H5COO -; Ka = 6.20x10-5
%3D
O CH21 COOH/CH21 COO-; Ka = 7.60x10-4
» H2PO41-/ HPO42-; Ka = 6.4x10-8
HIO /IO -; Ka = 2.30×10-11
O HCO3/CO32-; Ka = 4.7x10-11
H2CO3/HCO3- ; Ka = 4.3x10-7
O O
Transcribed Image Text:Given the following conjugate acid-base pairs and their Ka values at 25°C, which of the following acid-base buffer systems might be found in the human body? Choose one or more: O HCOO /CO0-; Ka = 1.77x10-4 H3PO4/H2PO42-; Ka = 6.9x10-3 %3D HN O2/N O2" ; Ka = 4.00x10-4 O C6H5COO H/C6H5COO -; Ka = 6.20x10-5 %3D O CH21 COOH/CH21 COO-; Ka = 7.60x10-4 » H2PO41-/ HPO42-; Ka = 6.4x10-8 HIO /IO -; Ka = 2.30×10-11 O HCO3/CO32-; Ka = 4.7x10-11 H2CO3/HCO3- ; Ka = 4.3x10-7 O O
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