书签分享收藏举报版权申诉 / 13

立即下载

当前位置：首页 > 教育专区 > 高考资料 > 2022年2020年中考化学总复习备考指导：几种装置气密性的检查知识点归纳及练习 .pdf

2022年2020年中考化学总复习备考指导：几种装置气密性的检查知识点归纳及练习 .pdf

上传人：H****o

文档编号：56671646

上传时间：2022-11-02

格式：PDF

页数：13

大小：558.74KB

( 4.5 )

《2022年2020年中考化学总复习备考指导：几种装置气密性的检查知识点归纳及练习 .pdf》由会员分享，可在线阅读，更多相关《2022年2020年中考化学总复习备考指导：几种装置气密性的检查知识点归纳及练习 .pdf（13页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、1 几种装置气密性的检查在实验室里制取氧气、氢气、二氧化碳等气体时都必须检查装置的气密性是否完好，只有装置不漏气时才能使用。实验装置的不同，所采取的方法可能不同，现列举出一些不同装置，谈谈它们气密性检查的方法。情况一：空气热胀冷缩法，如下图所示装置解析要检查装置是否漏气，应先把导气管的一端浸入烧杯或水槽的水中，用手紧握试管或用手掌紧贴烧瓶的外壁。(如果装置不漏气，试管或烧瓶里的空气受热膨胀，)若导管口就有气泡冒出。把手移开，冷却后，（水就从烧杯或水槽中升到导气管里，）导管内有一段水柱流入，则表明装置气密性良好。如果发现装置漏气，必须找出漏气的原因，并进行调整、修理或更换零件。再次检验，直至装置

2、不漏气时才能进行实验。方法把导气管的一端浸入烧杯或水槽的水中，用手紧握试管或用手掌紧贴烧瓶的外壁。若导管口就有气泡冒出。把手移开，冷却后，导管内有一段水柱流入，则表明装置气密性良好。2 情况二：带长颈漏斗装置气密性的检查解析因为只要装置不漏气，原来存在于锥形瓶中的空气就不可能消失，始终具有一定的气压，导致所加入的水不能不停地进入瓶中，所以，一会儿，长颈漏斗中的液面将不再下降。我们可以采用推拉注射器活塞的方法。方法在右侧橡胶管上夹紧弹簧夹，向长颈漏斗内注水，水会在漏斗颈内形成一段稳定的水柱，长时间不下降，（即长左面漏斗颈内水面和锥形瓶内的水面会有高度差一段时间内不变）表明装置气密性良好。情况三：

3、带有注射器和长颈漏斗装置气密性的检查解析文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9

4、文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6

5、L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9

6、文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6

7、L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9

8、文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6

9、L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P93 方法当缓慢拉活塞时，长颈漏斗下端口产生气泡,说明装置气密性良好。当缓慢推活塞时，可观察到长颈漏斗内有液面上升，形成一段水柱，说明该装置气密性良好。情况四：U型管气密性检查：解析方法检查左图中装置的气密性时，首先，在左侧橡胶管上夹上弹簧夹，向右侧管内注水，若右侧液面高于左侧，再上下调节右侧的管，左右液面总有高度差，且

10、一段时间内高度差不变，说明该装置气密性良好文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P

11、9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE

12、6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P

13、9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE

14、6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P

15、9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE

16、6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P94 注：如果左右液面总相平，右侧开口连于大气，就说明左侧也与大气相通，即漏气。情况五：带分液漏斗装置气密性的检查解析方法打开分液漏斗上端的磨口塞（这个塞一定要打开）向分液漏斗内注水，再打开分液漏斗活塞，分液漏斗内液面几乎不下降或分液漏斗内液面下降很少后不再下降，说明该装置气密性良好情况六：带干燥管气密性的检查文档编码

17、:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5

18、M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码

19、:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5

20、M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码

21、:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5

22、M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码

23、:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P95 解析方法在橡胶管上夹上弹簧夹，将干燥管压入烧杯的水中，水进入干燥管很少，一段时间后，干燥管内液面仍低于烧杯中的液面，高度差不变，说明该装置气密性良好。情况七：、启普发生器气密性的检查-液差法（也就是注水法）文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P

24、9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE

25、6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P

26、9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE

27、6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P

28、9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE

29、6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P

30、9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P96 解析方法先将右侧的活塞关闭，然后向球形漏斗内注水，水会在球形漏斗颈内形成一段稳定的水柱长时间不下落，（水面能停留在某一位置不再下降）此时球形漏斗中的水面高度于与容器下部半球体内的水面高度保持比较大的液面差，说明不漏气。情况八：带有刻度的注射器类：如下图气密性的检查方法解析文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文

31、档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L

32、4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文

33、档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L

34、4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文

35、档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L

36、4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P97

37、方法关闭酸式滴定管活塞，用手捂热烧瓶，若注射器活塞外移，松手后又回到原来位置，说明气密性良好。或关闭滴定管活塞，记下注射器活塞刻度，然后轻拉(推)活塞，松开手后如果注射器活塞能回到原来位置，说明装置气密性良好情况九：带有分液漏斗和橡皮管的装置气密性的检查解析此装置上分液漏斗的作用是为了随时添加液体。因为烧瓶内气体压强往往会大于上面分液漏斗内压强相等，因此液体很有可能不能顺利流下，但两者用胶皮管相连，两者内气体压强就会一直相等，所以液体总会顺利流下，这就是此装置的实验目的。检查装置气密性的原理是，要利用原有的空气，能与大气压塑造成功的压强差，从而能看到装置内气体流向的通路，进而确定装置漏气与否

38、。基于以上两点，该装置检查气密性时，就是想通过塑造烧瓶与分液漏斗内部压强差，如果能成功塑造压强差，靠着进入一点水，下面的压强大于上面的压强，水不能顺利流下而查气密性，可是由文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1

39、P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8

40、R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1

41、P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8

42、R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1

43、P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8

44、R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P98 于上下有橡胶管相连，烧瓶内气压会与分液漏斗内气压始终相等，故液体总能顺利流下，左侧装置：无法检查装置的气密性，因为分液漏斗上端的胶皮管与下端烧瓶一直相连，使分液漏斗液面上的气体压强与烧

45、瓶内的气体压强始终相等（也就是无法塑造压强差）因此无论装置气密性好不好，液体总能顺利流下。方法文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M

46、1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V

47、8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M

48、1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V

49、8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M

50、1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V8R7U3P9文档编码:CG9M7J1M1P9 HE6L4E5M9F6 ZJ2V

文档加载中……请稍候！
如果长时间未打开，您也可以点击刷新试试。

下载文档到电脑，查找使用更方便

4.3 金币

版权申诉 word格式文档无特别注明外均可编辑修改；预览文档经过压缩，下载后原文更清晰！ 立即下载

配套讲稿：: 如PPT文件的首页显示word图标，表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
特殊限制：: 部分文档作品中含有的国旗、国徽等图片，仅作为作品整体效果示例展示，禁止商用。设计者仅对作品中独创性部分享有著作权。
关键词：: 2022年2020年中考化学总复习备考指导：几种装置气密性的检查知识点归纳及练习 2022 2020 年中化学复习备考指导装置气密性检查知识点归纳练习

淘文阁 - 分享文档赚钱的网站所有资源均是用户自行上传分享，仅供网友学习交流，未经上传用户书面授权，请勿作他用。

限制150内

关于本文

本文标题：2022年2020年中考化学总复习备考指导：几种装置气密性的检查知识点归纳及练习 .pdf
链接地址：https://www.taowenge.com/p-56671646.html