醋酸溶液中存在电离平衡:CH3COOHCH3COO-+H+,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.常温下,pH=2的CH3COOH溶液与pH=12的NaOH 溶液等体积混合后溶液的pH =7 |
C.CH3COOH溶液中加入少量CH3COONa固体.平衡逆向移动 |
D.室温下向pH=3的醋酸溶液中加水稀释,溶液中![]() |
醋酸溶液中存在电离平衡:CH3COOHCH3COO-+H+,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.常温下,pH=2的CH3COOH溶液与pH=12的NaOH 溶液等体积混合后溶液的pH =7 |
C.CH3COOH溶液中加入少量CH3COONa固体.平衡逆向移动 |
D.室温下向pH=3的醋酸溶液中加水稀释,溶液中![]() |