College of Chemistry Chemical Engineering Analytical chemistry 例2:Na2C2O水溶液 参考水准 +e HC2O4 C2O42 +2H+ H2C2O4 H++H+ -,O- OH PBE: H++[HC204+2[H2C204=[oH-I Chap v Acid-base Titration 2013-2014学年
Analytical Chemistry Analytical Chemistry Analytical Chemistry Analytical Chemistry ChapⅤ Acid-base Titration Acid-base Titration Acid-base Titration Acid-base Titration 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014学年 例2：Na2C2O4水溶液 PBE：[H+ ] + [HC ] + [HC ] + [HC ] + [HC2O4 -] + 2[H ] + 2[H ] + 2[H ] + 2[H2C2O4] = [OH ] = [OH ] = [OH ] = [OH-] 参考水准 C2O4 2- H+ H2O + H+ + H+ HC2O4 - +2H+ H2C2O4 H+ OH-
College of Chemistry Chemical Engineering Analytical chemistry 例3:(NH42HPO水溶液 参考水准 +正+ H2PO4- HPO.2 H PO +2H HyPO NH+m→NH3 ++ H+ H,O oH HH++HHPo41+2IH3PO41=[NH3+(Po4]+[OH-I Chap v Acid-base Titration 2013-2014学年
Analytical Chemistry Analytical Chemistry Analytical Chemistry Analytical Chemistry ChapⅤ Acid-base Titration Acid-base Titration Acid-base Titration Acid-base Titration 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014学年 例3：(NH4) 2HPO4水溶液 [H+ ]+[H2PO4 -]+2[H3PO4] = [NH ] = [NH ] = [NH ] = [NH3]+[PO4 3-]+[OH-] 参考水准 HPO4 2- NH4 + H+ H2O + H+ + H+ H2PO4 - H+ OHH+ NH3 H+ PO4 3- +2H+ H3PO4
College of Chemistry Chemical Engineering Analytical chemistry 例4:amoL1HC水溶液 H中=a+[OH 例5:bmoL1NaOH水溶液 OH=b+[H+ 例6:HA+HB水溶液 H=[A+B+OH- Chap v Acid-base Titration 2013-2014学年
Analytical Chemistry Analytical Chemistry Analytical Chemistry Analytical Chemistry ChapⅤ Acid-base Titration Acid-base Titration Acid-base Titration Acid-base Titration 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014学年 例4：a mol·L-1 HCl 水溶液 [H+ ] = a + [OH-] 例5：b mol·L-1 NaOH水溶液 例6：HA + HB HA + HB HA + HB HA + HB 水溶液 [OH-] = b + [H+ ] [H+ ] = [A-] + [B-] +[OH ] +[OH ] +[OH ] +[OH-]
College of Chemistry Chemical Engineering Analytical chemistry 例7:A+B水溶液 0H=[HA+H]+ 例8:HA+HCI(a水溶液 [H中=a+[A]+[OH 例9:A+NaOH(b水溶液 oH=b+ HA*+li+ Chap v Acid-base Titration 2013-2014学年
Analytical Chemistry Analytical Chemistry Analytical Chemistry Analytical Chemistry ChapⅤ Acid-base Titration Acid-base Titration Acid-base Titration Acid-base Titration 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014学年 例7：A + B 水溶液 [OH-] = [HA ] = [HA ] = [HA ] = [HA+ ] + [HB ] + [HB ] + [HB ] + [HB+ ] +[H+ ] 例8：HA + HCl (a) 水溶液 [OH-] = [HA ] = [HA ] = [HA ] = [HA+ ] + [HB ] + [HB ] + [HB ] + [HB+ ] +[H+ ] [H+ ] = a + [A-] + [OH ] + [OH ] + [OH ] + [OH-] 例9：A + NaOH (b) 水溶液 [OH-] = b + [HA+ ] + [H+ ]
College of Chemistry Chemical Engineering Analytical chemistry 例10:amoL1HSO4水溶液 [H中=a+[SO42]+[OH 例11:cmB+ Cp molL-leB-nab水溶液 PBE: H+ CB=[B-1+[oH- 画H+[HB=cB+[oH Chap v Acid-base Titration 2013-2014学年
Analytical Chemistry Analytical Chemistry Analytical Chemistry Analytical Chemistry ChapⅤ Acid-base Titration Acid-base Titration Acid-base Titration Acid-base Titration 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014 2013-2014学年 例10： a mol·L-1 H2SO4 水溶液 [H+ ] = a + [SO4 2-] + [OH ] + [OH ] + [OH ] + [OH-] 例11： cHB + cBmol·L-1 HB-NaB水溶液 PBE：[H] + cB-= [B-] + [OH ] + [OH ] + [OH ] + [OH-] [H] + [HB] = cHB + [OH-]