当pH=5.0时EDTA的酸效应系数是(Ka1=1.3X10-1、Ka2=2.5X10-12Ka3=1.0X10-2、Ka4=2.2X10-3Ka5=6.9X10-7Ka6=5.5X10-11
当pH=5.0时EDTA的酸效应系数是(Ka1=1.3X10-1、Ka2=2.5X10-12Ka3=1.0X10-2、Ka4=2.2X10-3Ka5=6.9X10-7Ka6=5.5X10-11
A、1gay(H)=6.45
B、1gay(H)=6.44
C、1gay(H)=6.01
D、1gay(H)=5.26
正确答案:A