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江苏教育出版社出版的普通高中课程标准实验教科书化学(必修1)专题4第二单元第100页,关于硝酸性质的实验和以往实验有所不同,笔者认为该实验仍有不足之处。为此,笔者对该实验重新进行了创新设计。一、实验设计意图1.原实验存在的问题。(1)原实验使用排水法收集二氧化氮,这种方法
Jiangsu Education Publishing House of ordinary high school curriculum standard experimental textbook chemistry (compulsory 1) topic 4 second unit p. 100, the experimental nature of nitric acid and previous experiments are different, I believe that the experiment is still inadequate. To this end, the author re-conducted an innovative design of the experiment. First, the experimental design intent 1. The original problem of the experiment. (1) The original experiment using drainage method to collect nitrogen dioxide, this method