高中常见能水解的离子有哪些?

2025-04-01 10:12:47
推荐回答(5个)
回答1:

弱酸阴离子极其水解方程式
CH3COO- + H2O --- CH3COOH + OH-
AlO2- + H2O --- Al(OH)3 + OH-
HCO3- + H2O --- H2CO3 + OH-
CO32- + H2O --- HCO3- + OH-
PO4 3- + H2O --- HPO4 2- + OH-
HPO4 3- +H2O --- H2PO4- + OH-
S2- + H2O --- HS- + OH-
HS- + H2O --- H2S + OH-
SO3 2- + H2O --- HSO3- + OH-
HSO3- + H2O --- H2SO3 + OH-
F- + H2O --- HF + OH-
弱碱阳离子 极其水解方程式
Al3+ + 3H2O --- Al(OH)3 + 3H+
Mg2+ + 2H2O --- Mg(OH)2 + 2H+
NH4+ + H2O --- NH3H2O + H+
Ag+ + H2O --- AgOH + H+
Fe2+ + H2O --- Fe(OH)2 + 2H+
Fe3+ + H2O --- Fe(OH)3 + 3H+

中学应该就这些了,其实这些根本不难的,只要仔细总结,你就会掌握其中的规律.
主你好运!

回答2:

弱酸阴离子:亚硫酸根离子,亚硫酸氢根离子,碳酸根离子,碳酸氢根离子,磷酸根离子,磷酸一氢根离子,亚硝酸根离子,氟离子,次氯酸根离子
(SO3)2- + H2O=HSO3- + OH-;HSO3- +H2O=H2SO3+OH-
(CO3)2- + H2O=HCO3- + OH-;HCO3- +H2O=H2CO3+OH-
(PO4)3- + H2O=(HPO4)2- +OH-;(HPO4)2- +H2O=(H2PO4)- +OH-
NO2- +H2O=HNO2+OH-;F- +H2O=HF+OH-
ClO- +H2O=HClO+OH-

弱碱阳离子:Cu2+,Ag+,Fe3+,Fe2+,Al3+,Zn2+,NH4+
Cu2+ +2H2O=Cu(OH)2+2H+;Ag+ +H2O=AgOH+OH-
Fe3+ +3H2O=Fe(OH)3+3H+;Fe2+ +2H2O=Fe(OH)2+2H+
Al3+ +3H2O=Al(OH)3+3H+;Zn2+ +2H2O=Zn(OH)2+2H+
NH4+ +H2O=NH3.H2O+H+
注:以上等号皆用可逆符号替代.

回答3:

弱酸阴离子: 醋酸根、碳酸根、碳酸氢根、

弱碱阳离子 :铵根、三价铁离子、铝离子、

回答4:

铵根的水解和氨水的电离还有氢氧化铝的两性电离

回答5:

NH3OH←→(NH3+)+(OH-)
CH3COONa←→ (CH3COOH)+(OH-)+(Na)

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