基于证据比较浓硝酸与稀硝酸的氧化性  

Comparing Oxidizing Properties of Concentrated Nitric acid and Dilute Nitric Acid Based on Evidence

作　　者：吕艳 刘文兵[2] LV Yan;LIU Wen-Bing(Teaching and Research Office,Ganyu District Education Bureau,Lianyungang City,Lianyungang 222100.China;Teaching and Research Office.Lianyungang Education Bureau,Lianyungang 222006,China)

机构地区：[1]连云港市赣榆区教育局教研室,江苏连云港222100 [2]连云港市教育局教研室,江苏连云港222006

出　　处：《化学教育(中英文)》2025年第7期89-94,共6页Chinese Journal of Chemical Education

基　　金：江苏省中小学教学研究室第十五期重点课题“基于‘化学问证’的教学转向”(2023JY15 ZA126);江苏省教育科学“十四五”规划课题“中学化学问题生成与解决机制研究”(D/2021/02/738)。

摘　　要：由高考试题中浓硝酸与稀硝酸的氧化性比较说起,阐述目前氧化性比较的谬误。从氧化性概念出发,以硝酸的氧化性为例,从结构、性质和电极电势3个方面寻找氧化性强弱比较的证据。通过改变条件(浓度、酸碱度等)对同一物质氧化性强弱变化的比较,从定性到定量,探究氧化(还原)性比较的思路及对氧化还原反应的影响。tStarting from the oxidizing properties comparison between concentrated nitric acid and dilute nitric acid in the college entrance examination questions,this paper expounded the fallacy of the current oxidizing property comparison.Starting from the concept of oxidability,taking the oxidability of nitric acid as an example,the evidence of oxidation strength comparison was sought from three aspects:structure,property and electrode potential.Through the comparison of the oxidizing strength of the same substance by changing conditions(concentration,pH,etc.),the idea of oxidation(reduction)properties comparison and its influence on redox reaction were explored from qualitative to quantitative.

关 键 词：氧化性 浓硝酸 稀硝酸 证据 

分 类 号：G633.8[文化科学—教育学]