0.1mol/L的CH3COOH溶液达到电离平衡时,

问题描述:

0.1mol/L的CH3COOH溶液达到电离平衡时,
A.c(CH3COO-)=c(H+)
B.c(CH3COOH)=0.1mol/L
C.c(CH3COOH)>c(CH3COO-)
D.c(H+)=c(OH-)

CH3COOH是弱电解质,电离出的有CH3COO-和H+但溶液中有大量的CH3COOH分子,故选C