A.在A、B间任一点,溶液中都有c(Na+)>c(CH3COO-)>c(OH-)>c(H+) |
B.在B点,a>12.5,且c(Na+)=c(CH3COO-) |
C.在C点,c(Na+)+c(H+)=c(OH-)+c(CH3COO-) |
D.在D点,c(CH3COO-)+c(CH3COOH)=0.2mol/L |
0.2mol/L×0.025L |
0.05L |
A.9:2 | B.9:1 | C.1:10 | D.2:5 |
A.
| B.
| C.
| D.无法确定 |
A.[NH4+]<[Cl-] | B.[NH4+]>[Cl-] |
C.[NH4+]=[Cl-] | D.[NH4+]与[Cl-]关系不确定 |
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