1.有4种混合溶液,分别由等体积0.1 mol/L的2种溶液 混合而成:①CH3COONa与HCl;②CH3COONa与NaOH;③CH3COONa与NaCl;④CH3COONa与NaHCO3,下列各项排序正确的是
A.pH:②>③>④>①
B.cCH3COO-:②>④>③>①
C.溶液中cH+:①>③>②>④
D.cCH3COOH:①>④>③>②
2.向体积为Va的0.05 mol•L-1 CH3COOH溶液中加入体积为Vb的0.05 mol•L-1 KOH溶液,下列关系错误的是
A.Va>Vb时:cCH3COOH+cCH3COO->cK+
B.Va=Vb时:cCH3COOH+cH+=cOH-
C.VacK+>cOH->cH+
D.Va与Vb任意比时:cK++cH+=cOH-+cCH3COO-