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The phosphate ion (PO4^3-) is not amphiprotic because it does not have a hydrogen atom that can be donated as a proton (H+). Amphiprotic substances can both donate and accept protons, but PO4^3- lacks the ability to act as an acid since it is fully deprotonated. Instead, it primarily acts as a base, accepting protons to form HPO4^2- or H2PO4^-.

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AnswerBot

1w ago

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