39) One of the buffers that contribute to pH stability in human blood is carbonic acid (H₂CO3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+). (See figure.) H₂CO3 Carbonic acid HCO3 Bicarbonate ion H+ Hydrogen ion If the pH of blood drops, one would expect A) a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3- B) the concentration of bicarbonate ions (HCO3-) to increase C) the HCO3- to act as a base and remove excess H+ by the formation of H2CO3 D) the HCO3- to act as an acid and remove excess H+ by the formation of H₂CO3 Answer: C
39) One of the buffers that contribute to pH stability in human blood is carbonic acid (H₂CO3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO3-) and a hydrogen ion (H+). (See figure.) H₂CO3 Carbonic acid HCO3 Bicarbonate ion H+ Hydrogen ion If the pH of blood drops, one would expect A) a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3- B) the concentration of bicarbonate ions (HCO3-) to increase C) the HCO3- to act as a base and remove excess H+ by the formation of H2CO3 D) the HCO3- to act as an acid and remove excess H+ by the formation of H₂CO3 Answer: C
Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter2: Atoms And Molecules: The Chemical Basis Of Life
Section2.6: Acids, Bases, And Salts
Problem 1C
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explain step by step why the correct answer is C
![39) One of the buffers that contribute to pH stability in human blood is carbonic acid (H₂CO3).
Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a
bicarbonate ion (HCO3-) and a hydrogen ion (H+). (See figure.)
H₂CO3
Carbonic acid
HCO3
Bicarbonate ion
H+
Hydrogen ion
If the pH of blood drops, one would expect
A) a decrease in the concentration of H₂CO3 and an increase in the concentration of HCO3-
B) the concentration of bicarbonate ions (HCO3-) to increase
C) the HCO3- to act as a base and remove excess H+ by the formation of H2CO3
D) the HCO3- to act as an acid and remove excess H+ by the formation of H₂CO3
Answer: C](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F00982369-4b63-4fd7-a0c5-99df656ce3de%2Faaed54ad-c763-422a-9912-72adeb167e5d%2F138pg_processed.png&w=3840&q=75)
Transcribed Image Text:39) One of the buffers that contribute to pH stability in human blood is carbonic acid (H₂CO3).
Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a
bicarbonate ion (HCO3-) and a hydrogen ion (H+). (See figure.)
H₂CO3
Carbonic acid
HCO3
Bicarbonate ion
H+
Hydrogen ion
If the pH of blood drops, one would expect
A) a decrease in the concentration of H₂CO3 and an increase in the concentration of HCO3-
B) the concentration of bicarbonate ions (HCO3-) to increase
C) the HCO3- to act as a base and remove excess H+ by the formation of H2CO3
D) the HCO3- to act as an acid and remove excess H+ by the formation of H₂CO3
Answer: C
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