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无机含氧酸强度的判断是一个十分复杂的问题。它不仅与中心原子的电负性、原子半径以及氧化数等因素有关,而且还与溶剂的作用有关。在这些方面已有不少文章进行了讨论。但是,都没有提出具体判断酸强度的方法。而后者又正是教学与科研上最需要的。本文介绍一种方法—RAS法。它不仅可以简易地判断无机含氧酸的相对强度,还有许多其它重要的用途。实践证明,它无论在教学或科研方面都是一个有力的工具。
Judgment of the strength of inorganic oxygen acids is a very complex issue. It not only with the center of the electronegativity of atoms, atomic radius and oxidation number and other factors, but also with the role of solvent. Many articles have been discussed in these areas. However, no specific method for judging acid strength has been proposed. The latter is the most needed for teaching and research. This article describes a method-RAS method. It is not only easy to judge the relative strength of inorganic oxygen acids, there are many other important uses. Practice has proved that it is a powerful tool both in teaching and research.