空气中氧气含量测定实验的改进与拓展_OpenScirbe Publishing

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空气中氧气含量测定实验的改进与拓展

Author(s)：
马丽

Publication Title：

Wen Yuan (High School Edition) 2020 No.06

Affiliations：
陕西省西安经开第一学校陕西西安 710018

Abstract：
空气中氧气含量测定实验是一个重要的演示实验,实验操作的难点在于装置的气密性不好,红磷燃烧有一定的危险性,实验产生的五氧化二磷有毒.对于教材实验中存在的问题通过实验改进,利用加热玻璃棒间接点燃白磷,同时使燃烧过程在密闭容器内发生,从而提高实验的成功率和准确率.

Keywords：
含量测定;引发反应;实验改进;镁条燃烧

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[1] 马丽.空气中氧气含量测定实验的改进与拓展[J].Wen Yuan (High School Edition),2020(06),.

文渊(高中版)

Wen Yuan (High School Edition)

Language: 中文

CN：11-9276/G

ISSN：2096-6288

Publication Frequency: 月刊

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