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CoO、MoO3 CoO、CoS CoS、MoS2 CoO、MoS2
[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-]
c (Na+)=c(CH3COO-)+c(CH3COOH) c(H+)=c(CH3COO-)+c(OH-) c (Na+) > c (CH3COO-)>c(OH-)>c(H+) c (CH3COO-)>c(Na+)>c(H+)>c(OH-)
c(Na+)=c(CH3COOH)+c(CH3COO-) c(H+)=c(CH3COO-)+c(OH-) c(Na+)> c(CH3COO-)> c(OH-)> c(H+) c(CH3COO-)> c(Na+)> c(H+)> c(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
c(C.H.3COO-)>c(Na+) c( H.3COO-)<c(Na+) C. c(C.H.3COO-)= c(Na+) 无法确定 c(C.H.3COO-)与c(Na+)的关系
c(CH3COO-)>c(Na+) c(CH3COO-)<c(Na+) c(CH3COO-)=c(Na+) 无法确定c(CH3COO-)与c(Na+)的关系
c(OH-)> c(H+) c(CH3COOH)+c(CH3COO-)=0.2mol/L c(CH3COOH)>c(CH3COO-) c(CH3COO-)+c(OH-)=0.2mol/L
c(Na+)=c(CH3COO-)+c(CH3COOH) c(H+)=c(CH3COO-)+c(OH-) c(Na+)>c(CH3COO-)>c(OH-)>c(H+) c(CH3COO-)>c(Na+)>c(H+)>c(OH-)
[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
[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(CH3COO﹣)<c(Na+) c(CH3COOH)>c(CH3COO-) 2c(H+)=c(CH3COO﹣)﹣c(CH3COOH) c(CH3COOH)+c(CH3COO﹣)=0.01mol/L
c (Na+)==c(CH3COO-)+c(CH3COOH) c(H+)==c(CH3COO-)+c(OH一) c (Na+) > c (CH3COO-)>c(OH-)>c(H+) c (CH3COO-)>c(Na+)>c(H+)>c(OH-)
[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(Na+)>c(H+)>c(OH-) c(H+)= c(CH3COO-)+ c(OH-) c(Na+)= c(CH3COO-)+c(CH3COOH) c(Na+)>c(CH3COO-)> c(OH-)> c(H+)
c(CH3COO-)+) c(CH3COOH) + c(CH3COO-)=0.2mol/L c(CH3COOH) > c(CH3COO-) c(CH3COO-)>c(Na+)