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The leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (HOOCCOOH) and must...

The leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (HOOCCOOH) and must be removed before the stems are used to make rhubarb pie. If pKa1 = 1.23 and pKa2 = 4.19, what is the pH of a 0.0277 M solution of oxalic acid?

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