过滤时,滤液过多而超出滤纸边缘或滤纸被划破怎么办?麻烦具体说说(兼理由)直接解释下:可用少量原溶剂冲洗漏斗和滤纸2到3次,原滤液连同洗液重新进行过滤.

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/13 04:39:54
过滤时,滤液过多而超出滤纸边缘或滤纸被划破怎么办?麻烦具体说说(兼理由)直接解释下:可用少量原溶剂冲洗漏斗和滤纸2到3次,原滤液连同洗液重新进行过滤.

过滤时,滤液过多而超出滤纸边缘或滤纸被划破怎么办?麻烦具体说说(兼理由)直接解释下:可用少量原溶剂冲洗漏斗和滤纸2到3次,原滤液连同洗液重新进行过滤.
过滤时,滤液过多而超出滤纸边缘或滤纸被划破怎么办?麻烦具体说说(兼理由)
直接解释下:可用少量原溶剂冲洗漏斗和滤纸2到3次,原滤液连同洗液重新进行过滤.

过滤时,滤液过多而超出滤纸边缘或滤纸被划破怎么办?麻烦具体说说(兼理由)直接解释下:可用少量原溶剂冲洗漏斗和滤纸2到3次,原滤液连同洗液重新进行过滤.
这样会使部分浑浊液从滤纸和漏斗内壁之间流下,使滤液还是浑浊的,所以要重新做过滤器,再次过滤,为了不损失原物质,可用少量原溶剂冲洗漏斗和滤纸2到3次,再将原滤液连同洗液一同进行过滤.

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过滤时,滤液过多而超出滤纸边缘或滤纸被划破怎么办?麻烦具体说说(兼理由)直接解释下:可用少量原溶剂冲洗漏斗和滤纸2到3次,原滤液连同洗液重新进行过滤. 过滤时,滤液液面为什么不能高于滤纸边缘? 过滤时漏斗中滤液液面高于滤纸边缘会造成什么后果 过滤时漏斗中滤液液面高于滤纸边缘会造成什么后果求解 过滤时漏斗中滤液液面高于滤纸边缘会产生什么后果 湿手拿砝码,过滤时,滤液高于滤纸的边缘,可能引起的后果~ 过滤时为什么滤纸边缘要低于漏斗边缘? 过滤实验时滤纸高于漏斗边缘会怎样? 过滤时滤纸为什么要低于漏斗边缘/ 过滤时滤纸为什么要低于漏斗边缘? 为什么过滤时滤纸的边缘要高于液面 过滤水时,滤纸边缘高于液面的主要原因是 为什么过滤时滤纸的边缘要高于液面 过滤时 液面超过了滤纸边缘怎么办 1、含泥沙的食盐水过滤后,若滤液仍浑浊,则可能的原因不正确的是( )A、泥沙透过了滤纸B、滤纸有点破了C、加液太多,超过滤纸上口边缘,有液体从滤纸与漏斗壁之间流下了D、漏斗或接滤液 过滤 滤纸高于漏洞边缘 会怎样? 为了防止滤液溢出,过滤时滤纸边缘应高于漏..B为了防止滤液溢出,过滤时滤纸边缘应高于漏斗边缘 C.测定溶液酸碱性时,为使现象更明显,加入的指示剂越多越好 D.检验铵盐和碱共热时有无氨气 为什么滤纸高于漏斗边缘会使滤液浑浊