(1)CH 3 COONa;NH 4 Cl;Ba(OH) 2 ;Na 2 SO 4
(2)Ba 2+ +SO 4 2- = BaSO 4 ↓
(3)10 a-14
(4)c(OH - )>c(Ba 2+ ) =c(Cl - )>c(NH 4 + )>c(H + )
(5)1:4
(1)CH 3 COONa;NH 4 Cl;Ba(OH) 2 ;Na 2 SO 4
(2)Ba 2+ +SO 4 2- = BaSO 4 ↓
(3)10 a-14
(4)c(OH - )>c(Ba 2+ ) =c(Cl - )>c(NH 4 + )>c(H + )
(5)1:4