A.9.8 B.7.8 C.5.7 D.4.7
A.2.5B.2.65C.3.65D.9.35
A.CN-(KHCN=6.2x10-10) B.S2-(KHS-=7.1x10-15;KH2S=1.3x10-7) C.F-(KHF=3.5x10-4) D.CH3COO-(KHAc=1.8x10-5)