Ba(OH)2是强碱,所以它是强碱性,PH大.
而CH3COONa是强碱弱酸盐,水解呈碱性,水解程度很少,所以CH3COONa呈弱碱性,PH小.
Ba(OH)2 = Ba2+ + 2OH-
CH3COONa+ H2O CH3COOH + NaOH
CH3COO-+ H2O CH3COOH + OH-
Ba(OH)2是强碱,所以它是强碱性,PH大.
而CH3COONa是强碱弱酸盐,水解呈碱性,水解程度很少,所以CH3COONa呈弱碱性,PH小.
Ba(OH)2 = Ba2+ + 2OH-
CH3COONa+ H2O CH3COOH + NaOH
CH3COO-+ H2O CH3COOH + OH-