Question

One of the buffers that contribute to pH stability in human blood is carbonic acid (H 2CO 3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO 3 -) 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 ______. the concentration of bicarbonate ions (HCO3-) to increase the HCO3- to act as an acid and remove excess H+ by the formation of H2CO3 a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3- the HCO3- to act as a base and remove excess H+ by the formation of H2CO3

          One of the buffers that contribute to pH stability in human blood is carbonic acid (H 2CO 3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO 3 -) 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 ______.

the concentration of bicarbonate ions (HCO3-) to increase
the HCO3- to act as an acid and remove excess H+ by the formation of H2CO3
a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3-
the HCO3- to act as a base and remove excess H+ by the formation of H2CO3

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One of the buffers that contribute to pH stability in human blood is carbonic acid (H 2CO 3). Carbonic acid is a weak acid that, when placed in an aqueous solution, dissociates into a bicarbonate ion (HCO 3 -) 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 .

the concentration of bicarbonate ions (HCO3-) to increase
the HCO3- to act as an acid and remove excess H+ by the formation of H2CO3
a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3-
the HCO3- to act as a base and remove excess H+ by the formation of H2CO3

Added by Raquel B.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Parul N

02/07/2022

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- The dissociation of carbonic acid (H2CO3) in blood can be represented by the equation: \[ \text{H}_2\text{CO}_3 \rightleftharpoons \text{HCO}_3^- + \text{H}^+ \] This indicates that carbonic acid dissociates into bicarbonate ions (HCO3-) and hydrogen Show more…

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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.) If the pH of blood drops, one would expect ______. the concentration of bicarbonate ions (HCO3-) to increase the HCO3- to act as an acid and remove excess H+ by the formation of H2CO3 a decrease in the concentration of H2CO3 and an increase in the concentration of HCO3- the HCO3- to act as a base and remove excess H+ by the formation of H2CO3

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00:01 Hello hi now the question is so the ph stability ph stability the ph stability in human blood it is maintained by buffer solution so what is the buffer solution here it is carbonic acid so this carbonic acid acts as a buffer solution so what is meant by buffer solution means this buffer solution it resists the changes in ph so so what is meant by buffer solution means the solution which resists changes in the ph.

00:41 So whenever acid or alkali is added to the human blood, automatically the ph of the human blood will change.

00:52 So without changing in order to resist the changes in the ph of the human blood, this carbonic acid acts as a buffer solution.

01:02 So it resists the changes in the ph of the human blood.

01:07 So carbonic acid, carbonic acid, h2, co3, when placed in aqua solution, aqua solution means on the addition of the water.

01:22 It dissociated into, so bicarbonate ions h .c .o3 minus and hydrogen ion.

01:31 So h3, co3 minus it is the bicarbonate ion.

01:37 H plus is the hydrogen ion, hydrogen ion.

01:47 So if the ph of the blood drops, so whenever ph of the blood drops, so decreases, ph of the blood decreases.

01:58 So we can expect.

02:00 So what happens? what happens to this equilibrium they have asked.

02:05 So whenever the ph of the blood drops, so usually, blood is usually the ph.

02:12 Of the blood it is usually 7 .35 to 7 .45...

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