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Given similar concentrations, the stronger acid corresponds to the lower pH. Comment on the relative strengths of the acids H3PO4, H2PO4^– and H2PO4^2–
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Given similar concentrations, the stronger acid corresponds to the lower pH. Comment on the relative strengths of the acids H3PO4, H2PO4^– and H2PO4^2–

User Kamrul
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Answer:

H3PO4 is stronger than H2PO4- because

H3PO4 dissociation constant is 6.9×10^-3

H2PO4^- dissociation constant is 6.2×10^-8

User Pnkfelix
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