大学化学教材使用统一常数的必要性  

University Chemistry Teaching Material Using a Uniform Constant Necessity

作　　者：李永红[1] 

机构地区：[1]营口职业技术学院,辽宁营口115000

出　　处：《科技创新导报》2012年第31期243-244,246,共3页Science and Technology Innovation Herald

摘　　要：在不同的大学化学教材中同一种弱酸的电离平衡常数Kaθ不同,同一种物质溶度积常数Kspθ不同,同一电对标准电极电势φθ不同,同一种配离子稳定常数Kθ不同。本文通过计算说明由于这些常数不同,对于同一问题会得出不同的答案。分析了这种现象给联合办学、考教分离、合作编写教材、跨学院教学等工作带来的困惑,并对使用统一常数提出了建议。Different university chemistry teaching material with a weak acid ionization equilibrium constant K a is different, the same substance of solubility product constant of K sp is different the same power of the standard electrode potential of Ф different Kaθ with a complex ion stability constant K德θ stability different.In this paper, the calculation shows that the result of these constants are different, for the same problem will get a different answer.An analysis of this phenomenon to the joint running school, exam--teaching separatlan, written in collaboration materials, cross college teaching work brought bewilderment,And a uniform constant should be suggested.

关 键 词：常数 统一化 必要性 

分 类 号：G420[文化科学—课程与教学论]