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[H+]>[OH-] [CH3COOH]+[CH3COO-]=0.2 mol/L [CH3COOH]>[CH3COO-] [CH3COO-]+[OH-]=0.2 mol/L
[Na+]=[CH3COO-]+[CH3COOH] [H+]=c(CH3COO-)+[OH-] [Na+]>[CH3COO-]>[OH-]>[H+] [CH3COO-]>[Na+]>[H+]>[OH-]
在pH<4.76的溶液中,c(CH3COO-)<c(CH3COOH) 在pH=7的溶液中,α(CH3COOH)=0,α(CH3COO-)=1.0 在pH>4.76的溶液中,c(CH3COO-)与c(OH-)之和可大于c(H+) 在pH=4.76的溶液中加盐酸,α(CH3COOH)与α(CH3COO-)之和保持不变
C6H5O―+H2O+CO2→C6H5OH+HCO3―; CH3COO― 十 6H5OH→ CH3COOH+C6H5O―C.CH3COO―+HCOOH→CH3COOH+HCOO― CO32-+2CH3COOH→2CH3COO―+H2O+CO2↑
c(OH-)> c(H+) c(CH3COOH)+c(CH3COO-)=0.2mol/L c(CH3COOH)>c(CH3COO-) c(CH3COO-)+c(OH-)=0.2mol/L
CH3COO- H2O NO2 NH3 CO32+
[Na+]=[CH3COO-]+[CH3COOH] [H+]=[CH3COO-]+[OH-] [Na+]>[CH3COO-]>[OH-]>[H+] [CH3COO-]>[Na+]>[H+]>[OH-]
在pH<4.76的溶液中,c(CH3COO-)<c(CH3COOH) 在pH=7的溶液中,α(CH3COOH)=0,α(CH3COO-)=1.0 在pH>4.76的溶液中,c(CH3COO-)与c(OH-)之和可大于c(H+) 在pH=4.76的溶液中加盐酸,α(CH3COOH)与α(CH3COO-)之和保持不变
CH3-OOC-CH2CH3 (CH3)2CH-O-CH(CH3)2 CH3-OOC-CH2-COO-CH3 CH3CH2-OOC-CH2CH2-COO-CH2CH3
CH3-OOC-CH2CH3 (CH3)2CH-O-CH(CH3)2 CH3-OOC-CH2-COO-CH3 CH3CH2-OOC-CH2CH2-COO-CH2CH3
CH3COOH + OH- CH3COO-+H2O S2-+2H2O H2S+2OH- CH3COOH+H2O CH3COO-+H3O+ NH4++H2O NH3• H2O+H+
[CH3COO-]>[Na+]
[CH3COOH]>[CH3COO-]
2[H+]=[CH3COO-]-[CH3COOH]
[CH3COOH]+[CH3COO-]=0.1mol・L-1
c(CH3COO﹣)<c(Na+) c(CH3COOH)>c(CH3COO-) 2c(H+)=c(CH3COO﹣)﹣c(CH3COOH) c(CH3COOH)+c(CH3COO﹣)=0.01mol/L
c(H+)c(CH3COOH)+c(CH3COO-)=0.2mol/L c(CH3COOH) >c(CH3COO-) c(CH3COO-)+ c(OH-)=0. 1mol/L
c(CH3COO﹣)<c(Na+) c(CH3COOH)>c(CH3COO-) 2c(H+)=c(CH3COO﹣)﹣c(CH3COOH) c(CH3COOH)+c(CH3COO﹣)=0.01mol/L
[Na+] = [CH3COO-]>[H+] = [OH-] [Na+]>[CH3COO-]>[H+]>[OH-] [Na+]>[CH3COO-]>[OH-]>[H+] [CH3COO-]>[Na+]>[H+]>[OH-]
[CH3COO-]>[Na+] [CH3COOH]>[CH3COO-] 2[H+]=[CH3COO-]-[CH3COOH] [CH3COOH]+[CH3COO-]=0.02 mol·L-1
c(CH3COO-)+) c(CH3COOH) + c(CH3COO-)=0.2mol/L c(CH3COOH) > c(CH3COO-) c(CH3COO-)>c(Na+)
CH3-OOC-CH2CH3 (CH3)2CH-O-CH(CH3)2 CH3-OOC-CH2-COO-CH3 CH3CH2-OOC-CH2CH2-COO-CH2CH3