H2O+H3PO4 H3O+ +H2PO4 ', pK1 = 2.15 H2O + H2PO4 ' H3O+ + HPO4 2', pK2 = 7.80 Hence, pH of NaH2PO4 is

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H2O+H3PO4 H3O+ +H2PO4 ', pK1 = 2.15 H2O + H2PO4 ' H3O+ + HPO4 2', pK2 = 7.80 Hence, pH of NaH2PO4 is






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