下列各水溶液酸性最强的是( )
A.[OH-]=10-9mol/L
B.[OH-]=10-11mol/L
C.pH=7
D.[H+]=10-1mol/L
pH=3的水溶液,[OH-]为( )
A.10-3mol/L
B.10-11mol/L
C.10-7mol/L
D.10-1mol/L
pOH=3的水溶液,[OH-]为( )
A.10-3mol/L
B.10-11mol/L
C.10-7mol/L
D.10-1mol/L
pOH=3的水溶液,[H+]为( )
A.10-3mol/L
B.10-11mol/L
C.10-7mol/L
D.10-1 mol/L