A.25ml0.10mol•L-1HAc與25ml0.05mol•L-1NaAc的混合溶液 B.25ml0.20mol•L-1HAc與25ml0.01mol•L-1NaOH的混合溶液 C.25ml0.10mol•L-1NaOH與25ml0.20mol•L-1HAc的混合溶液 D.25ml0.01mol•L-1NaOH與25ml0.005mol•L-1HAc的混合溶液
A.[H+] B.α C.pH D.Ka
A.HCl B.NaCl C.Na2CO3 D.H2O