NaOH 标准溶液的配制和标定 - bjmu.edu.cn

1 NaOH Preparation and Standardization of Standard Sodium Hydroxide Solution CO2 Methods and Procedures of the Experiment 1 2 NaOH Apparatus and Reagents NaOH H2C2O4 2H2O KHC8H4O4 210 C NaOH NaOH COOHCOOKCOONaCOOK+NaOH = + H2O Ka1 = 10 3 Ka2 = 10 6 pH Apparatus and Reagents 1 10 mL 100 mL 250 mL 1000 mL 50 mL 2 KHC8H4O4 Methods and Procedures of the Experiment 1 mol L-1 NaOH mL 1000 mL 800 mL 2 mol L-1 NaOH KHC8H4O4 g 250 mL 50 mL 1 2 mol L-1 NaOH min NaOH Data recording and Processing 1 NaOH 1 2 3 m(KHC8H4O4)/(g) V(NaOH)/(mL) c(NaOH)/(mol L-1) NaOH (mol L-1) 844 NaOH844 NaOH(KHC H O ) 1000(KHC H O ) = mcMV M(KHC8H4O4)

2 = Notes 1 130 g NaOH 100 mL 2 105 C 110 C 3 CO2 H2CO3 H2CO3 Attentions 1 NaOH NaOH NaOH SiO2 Na2 SiO3 2 NaOH 3 4 1 2 Study Questions 1 CO2 NaOH 2