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You want to maintain pH = 7.0 for an enzyme-catalyzed reaction that will produce hydrogen ions...

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Chemistry

You want to maintain pH = 7.0 for an enzyme-catalyzed reactionthat will produce hydrogen ions along with the desired product. Atequal concentrations, which weak acid, if any, will serve as thebetter buffer for the reaction: Acid A pKa = 6.5, Acid B pKa =7.5

a. Acid A

b. both are equally effective

c. water is as good as either of the acids available

d. acid B

*** I get that answer A is correct but Wouldn't B (pKa = 7.5) bebetter because as more H+ gets released by the reaction the pHwould go down closer to 7, while if A was used the pH would fallfurther away from 7 . Also I'm not sure what is at \"equalconcentrations\" as in the question

Answer & Explanation Solved by verified expert
4.5 Ratings (857 Votes)
The correct answer is A Weak acid A pKa 65 If we are working with a buffer it means that we have a weak acid or base with its conjugated salt conjugated basic or acid salt In this case we have a weak acid with its conjugated basic salt At equal    See Answer
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