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化学是一门以实验为基础的学科,化学实验是高考的必考内容。认真分析近几年的高考化学试题,我们会发现化学定量实验是其考查的重点之一。混合物组分的测定是近年高考考查定量实验的主要内容,从其分析方法上看主要包括重量分析法、滴定分析法和气体体积法,下面结合例题进行分析。一、重量分析法重量分析法就是根据可测量物的重量来确
Chemistry is an experiment-based discipline, chemistry experiment is the compulsory content of college entrance examination. A careful analysis of the recent years of college entrance examination chemical tests, we will find that the quantitative test of chemistry is one of the key points of its examination. The determination of mixture components in recent years, the main content of the quantitative test of college entrance examination test, from the point of view of its analytical methods include gravimetric analysis, titration and gas volume method, the following combination of examples to analyze. First, gravimetric method Gravimetric method is based on the weight of measurable objects to do