【简答题】As you know, science has had great effect on our lives since the ancient time. Nowadays science has a closer relation with our life. What’s the latest development in science and technology and how doe...
【简答题】下列多元弱酸能分步滴定的有( )。A. H2SO3(Ka1=1.3×10-2;Ka2=6.3×10-8) B. H2CO3(Ka1=4.2×10-7;Ka2=5.6×10-11) C. H2C2O4(Ka1=5.9×10-2;Ka2=6.4×10-5) D. H3PO3(Ka1=5.0×10-2;Ka2=2.5×10-7)