常温下,下列溶液中的微粒浓度关系正确的是( )
A.新制氯水中加入固体NaOH:c(Na+) = c(Cl−) + c(ClO−) + c(OH−) |
B.pH = 8.3的NaHCO3溶液:c(Na+) > c(HCO3−) > c(CO32−) > c(H2CO3) |
C.pH = 11的氨水与pH = 3的盐酸等体积混合:c(Cl−) = c(NH4+) > c(OH−) = c(H+) |
D.0.2mol/LCH3COOH溶液与0.1mol/LNaOH溶液等体积混合: |
2c(H+) – 2c(OH−) = c(CH3COO−) – c(CH3COOH)