常温下,用0.100 0 mol/LNaOH溶液滴定20. 00 mL 0.1000 mol/LCH3COOH溶液所得滴定曲线如下图。下列说法正确的是 |
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A.点①所示溶液中:c( CH3COO-)+c( OH-)= c( CH3COOH) +c( H+) B.点②所示溶液中:c(Na+)=c(CH3COOH)+ c( CH3COO-) C.点③所示溶液中:c(Na+)>c(OH-))c(CH3COO-)>c(H+) D.滴定过程中可能出现:c( CH3COOH)>c( CH3COO-)>c( H+)>c( Na+)>c(OH-) |