化学复习第4章第5讲氨和铵盐ppt课件.ppt

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1、刺激性小700Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.NH3·H2O、NH3、H2O、NH+、OH－、H＋NH3↑＋H2O有白烟生成浓硝酸HCl＋NH3===NH4ClNH3＋HNO3===NH4NO34，Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright

2、2019-2019AsposePtyLtd.4NH3＋5O2====4NO＋6H2O高温催化剂Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.Al3＋＋3NH3·H2O===Al(OH)3↓＋3NH+生成红褐色沉淀生成白色沉淀Fe3＋＋3NH3·H2O===Fe(OH)3↓＋3NH+44Evaluationonly.CreatedwithAspose.Slidesfor

3、.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.N2+3H22NH3白4Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.NH3↑＋HCl↑2NH3↑＋CO2↑＋H2O↑Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0

4、.0.Copyright2019-2019AsposePtyLtd.红蓝提示不相同，NH4Cl固体受热分解成NH3和HCl，发生了化学变化；固态碘受热升华成为碘蒸气，是物理变化。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.科目一考试km1.jsyst/2019年科目一模拟考试题科目二考试km2.jsyst2019年科目二考试技巧、考试内容、考试视频Evaluatio

5、nonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.提示(1)采用图3装置Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProf

6、ile5.2.0.0.Copyright2019-2019AsposePtyLtd.提示采用图1装置。3.若图2的分液漏斗中盛有浓氨水，则烧瓶中的固体可选用何种物质？反应原理是什么？提示固体可选用CaO、NaOH、碱石灰等，反应原理：浓氨水中存在以下平衡：NH3＋H2ONH3·H2ONH＋OH－，加入固态碱性物质(如CaO、NaOH、碱石灰等)，使平衡逆向移动，同时反应放热，促进NH3·H2O的分解。+4Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5Client

7、Profile5.2.0.0.Copyright2019-2019AsposePtyLtd.提示减小NH3与空气的对流速度，收集比较纯净的NH3，同时避免污染空气。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2

8、019-2019AsposePtyLtd.答案CEvaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2019-2019AsposePtyLtd.Evaluationonly.CreatedwithAspose.S