5.(2008•天津理综,9)醋酸溶液中存在电离平衡:CH3COOH H++CH3COO-,下列叙述不正确的是 ( )A.CH3COOH溶液中离子浓度的关系满足:c(H+)=c(OH-)+c(CH3COO-)B.0.1 mol/L的CH3COOH溶液加水稀释,溶液中c(OH-)

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