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A solution is prepared by adding a small amount of oxalic acid (H2C2O4) and sufficient buffer...

A solution is prepared by adding a small amount of oxalic acid (H2C2O4) and sufficient buffer to establish a specific pH.  For each solution pH listed below, indicate the dominant oxalate species.  There can be more than one “dominant” oxalate species.

a. pH = 1.0

b. pH = 4.0

c. pH = 9.0

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