强酸与强碱的滴定突跃范围影响因素为: 酸碱浓度愈大,滴定突跃区间愈大。 溶液浓度愈稀时,滴定突跃区间愈小 例如,0.01000mo/ NAoh滴定0.01000mo/LHc 时 NaOH人HC (20.00-1998)×0.01000 =5.00×10-6mol/l HCl NaoH 20.00+1998 pH=5.30 NAoh + vhcl 在误差+0.1%时 pOH=530,pH=8.70 滴定突跃范围为pH=5.3087010 强酸与强碱的滴定突跃范围影响因素为: 酸碱浓度愈大,滴定突跃区间愈大。 溶液浓度愈稀时,滴定突跃区间愈小 例如,0.01000mol/LNaOH滴定0.01000mol/LHCl 时 在误差 –0.1% 时 pH=5.30 在误差+0.1%时 pOH=5.30, pH=8.70 滴定突跃范围为pH=5.30—8.70 mol l V V V V C H HCl NaOH HCl NaOH HCl 5.00 10 / 20.00 19.98 + ( ) (20.00 19.98) 0.01000 −6 = + − = + − = NaOH HCl NaOH NaOH HCl V V V V C OH + − = − ( )