Uric acid dissociates as shown in the figure at the right, Ask an Expert

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Uric acid dissociates as shown in the figure at the right with a pKa of 5.80, and can be treated as a simple monoprotic acid in this pH range. Its solubility in urine depends on the relative amount of protonated and unprotonated forms. A urine sample was found to have a pH of 6.76.

What would be the ratio of the unprotonated form, A-, to the protonated form, HA, for uric acid in this urine sample?

[A-]/[HA]=

What would be the fraction of the uric acid in the neutral, protonated form in this sample?

Fraction as HA=

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Category:- Chemistry
Reference No.:- M9474659

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