NaHCO3少量:
NaHCO3+Ba(OH)2=BaCO3↓+NaOH+H2O
NaHCO3过量:
2NaHCO3+Ba(OH)2=BaCO3↓+2H2O+2NaOH
<1>当NaHCO3少量时:NaHCO3+Ba(OH)2=BaCO3↓+NaOH+H2O
<2>当NaHCO3过量时:2NaHCO3+Ba(OH)2=BaCO3↓+2H2O+2NaOH
物质量比为1:1 =BaCO3+H2O+NaOH
物质量比为2:1 =BaCO3+2H2O+Na2CO3
2NaHCO3+Ba(OH)2=BaCO3(沉淀)+Na2CO3+2H2O