什么样的组成B有最大值？ 为了简单起见，在cHA中加入Cb, [A]=C [HA]=CHA-Cb 则 pH =pk,+lg-C CHA-Co dpH=d(I)=1 2.303 CHA-C2.303 (d Incp-dIn(CHA-C)) 1 dcs+1 dcs=1.Cna-co t cu dc 2.303G2.303cHA-C2.303,(C-c) B=dc.=23039lGW-G-2303ANIA=23036,6c dpH CHA CHA什么样的组成 β 有最大值？ 为了简单起见，在cHA中加入cb， [A-] = cb [HA] = cHA – cb 则 HA b b a c c c pH pK − = + lg b b HA b HA b b HA b b b b b HA b HA b b dc c c c c c c c c dc c dc d c d c c c c c dpH d 2.303 ( ) 1 2.303 1 2.303 1 ( ln ln( )) 2.303 1 ln ) 2.303 1 ( − − + = ⋅ − = ⋅ + · = − − − = A HA HA HA HA b b HA b c c c c c c dpH dc β 2.303δ δ [A][HA] 2.303 ( ) 2.303 = = − = =