高-化学知识小卡片( 03 ) _____班 姓名_______
知识点:除杂问题:
写出除去下列杂质的试剂或除杂方法:(括号内为杂质)
1.Cl2(HCl)________________________________
2.CO2(HCl) _________________________________
3.SO2(HCl) _________________________________
4.H2S(HCl) _________________________________
5.CO2(SO2) _________________________________
6.SO2(SO3) _________________________________
7.水(少量溴) _________________________________
8.NaCl晶体(碘单质) _____________________________
9.Na2SO4固体(NH4HCO3) _________________________
10.Na2CO3固体(NaHCO3) _________________________
11.NH3(水蒸气) ________________________________
高-化学知识小卡片( 03 ) _____班 姓名_______
知识点:除杂问题:
写出除去下列杂质的试剂或除杂方法:(括号内为杂质)
1.Cl2(HCl)________________________________
2.CO2(HCl) _________________________________
3.SO2(HCl) _________________________________
4.H2S(HCl) _________________________________
5.CO2(SO2) _________________________________
6.SO2(SO3) _________________________________
7.水(少量溴) _________________________________
8.NaCl晶体(碘单质) _____________________________
9.Na2SO4固体(NH4HCO3) _________________________
10.Na2CO3固体(NaHCO3) _________________________
11.NH3(水蒸气) ________________________________