For a given acid HA, it was determined that at pH 6.0 the concentration of the conjugate base [A]was 0.075 M and the acid [HA] was 0.025 M.What percent of this acid is ionized at pH 6.0?What is the pKa of this acid?What pH would this acid be 50% lonized? Under anerobic conditions, when our bodies lack enough oxygen to complete respiration, theproduct of the glycolytic pathway, pyruvate, is reduced to lactate in an effort to allow for energyproduction to continue. Lactate is the conjugate base of lactic acid, thus high lactate levels can leadto a drop in pH in our muscle cells.0OHOH0CсH, - сCCH, + HHOH0Hhydrogenionlactic acidlactateThe ionization of lactic acid to lactate has a K₂ of 1.585 x 10-4.A solution containing a mixture of lactic acid and lactate was found to have a pH of 3.80.What percent of that solution is lactate?с

Percent ionization of HA = [H+]/[HA] *100% pH =6.0 pH = -log[H+] 6.0 =-log[H+] [H+] = inv log…

For a given acid HA, it was determined that at pH 6.0 the concentration of the conjugate base [A] was 0.075 M and the acid [HA] was 0.025 M. What percent of this acid is ionized at pH 6.0? What is the pKa of this acid? What pH would this acid be 50% ionized?

For a given acid HA, it was determined that at pH 6.0 the concentration of the conjugate base [A] was 0.075 M and the acid [HA] was 0.025 M. What percent of this acid is ionized at pH 6.0? What is the pKa of this acid? What pH would this acid be 50% ionized?

Chemistry

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Question

For a given acid HA, it was determined that at pH 6.0 the concentration of the conjugate base [A]
was 0.075 M and the acid [HA] was 0.025 M.
What percent of this acid is ionized at pH 6.0?
What is the pKa of this acid?
What pH would this acid be 50% lonized?

Under anerobic conditions, when our bodies lack enough oxygen to complete respiration, the
product of the glycolytic pathway, pyruvate, is reduced to lactate in an effort to allow for energy
production to continue. Lactate is the conjugate base of lactic acid, thus high lactate levels can lead
to a drop in pH in our muscle cells.
0
OH
OH
0
C
сH, - с
C
CH, + H
HO
H
0
H
hydrogen
ion
lactic acid
lactate
The ionization of lactic acid to lactate has a K₂ of 1.585 x 10-4.
A solution containing a mixture of lactic acid and lactate was found to have a pH of 3.80.
What percent of that solution is lactate?
с

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