You and your research group are studying a new biologically important molecule.
ID: 918884 • Letter: Y
Question
You and your research group are studying a new biologically important molecule. In vivo, testudoic acid (H2TA) is oxidized to dehydrotestudoic acid (TA). The standard reduction potential was determined to be +0.324 V. a. Write the oxidation half reaction of testudoic acid. b. Could the experiment you conducted in lab be repeated to determine the amount of testudoic acid in a sample? Explain why or why not. c. Would dissolved oxygen in solution affect the reaction? If so, how would it alter your results? Include any half reactions to support your answe
Explanation / Answer
The Oxidation half reaction is
H2TA - 2e- = TA + 2H+
The actual half cell potential depends upon the concentration of the oxidized species according to Nearnst Equation. Hence, this experiment can be utilized to calculate the concentration of H2TA.
In presence of Oxygen the additional reaction taking place is
4H+ + O2 + 4e- = 2 H2O
This reaction will get coupled with the original reaction to facilitate the oxidation.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.