An enzyme reaction takes place in a 10mL solution that has a total citrate concentration of 120mM and an initial pH of 7.00. During the reaction, 0.2mmoles of acid are produced. (pKa values for citric acid: pKa1=3.15, pKa2=4.77, pKa3=6.40) a) At pH 7.00 (before the enzyme reaction occurs), determine the concentrations of the predominant forms of citrate in solution. b) calculate the pH of the solution after the enzymatic reaction has occurred.

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A:

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A: Explanation given as follows

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A:

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A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.

Q: 42.) On a Lineweaver-Burk plot, a changing slope upon addition of increasing concentration of…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

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A:

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.