分别往Na3PO4溶液中加过量HCl,H3PO4,CH3COOH,问这些反应将生成磷酸还是酸式盐?
问题描述:
分别往Na3PO4溶液中加过量HCl,H3PO4,CH3COOH,问这些反应将生成磷酸还是酸式盐?
答
Na3PO4+3HCl=H3PO4+3NaCl
Na3PO4+2H3PO4=3NaH2PO4
Na3PO4+CH3COOH=Na2HPO4+CH3COONa