A.HCl | B.CH3COOH | C.NH4Cl | D.CH3COONa E.NaOH F.NaCl |
A.稀释溶液,增大 | B.通入,溶液pH减小 |
C.升高温度,此平衡常数增大 | D.加入NaOH固体,减小 |
A.0.1 mol/LCH3COOH溶液中:c(CH3COO-)+ c(CH3COOH)=0.1mol/L |
B.NaHCO3溶液中:c(OH-) = c(H+) + c(H2CO3)-c(CO32—) |
C.CH3COONa溶液中:c(Na+)> c(CH3COO-)> c(OH-)> c(H+) |
D.Na2S溶液中:2 c(Na+)= c(S2—) + c(HS—)+ c(H2S) |
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