A.PH="7" | B.c(H+)=c(OH-) |
C.c(H+)=c(OH-)=10-7mol/L | D.c(H+)×c(OH-)=10-14 |
A.0.5mol/L | B.1mol/L |
C.2mol/L | D.4mol/L |
A.将某电解质溶液加水稀释,溶液中离子浓度都减小 |
B.将AlCl3溶液、Na2SO3溶液蒸干并灼烧分别得到Al2O3、Na2SO3 |
C.0.1mol/LCH3COOH溶液在稀释过程中c(H+)/c(CH3COOH)将变大 |
D.25℃时,pH=3的某酸溶液与pH=11的NaOH溶液等体积混合后,溶液的pH≥7 |
A.相等 | B.x>y | C.x=10-2y | D.x=102y |
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