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规律一:有机物的物质的量一定时1.耗氧量比较(1)若属于烃类物质,根据分子中碳、氢原子个数越多,耗氧量越多,可以直接比较;若碳、氢原子数都不同且一多一少,则可以按1个碳原子与4个氢原子的耗氧量相当,转换成碳或氢原子个数相同后再进行比较即可。如:A、B两种烃的总物质的量一定,不论二者以何种比例混合,耗O2量是一定的:(分子量B>A)则B比A多n个碳原子,同时
Regularity 1: the amount of organic matter at a certain time 1. Oxygen consumption comparison (1) If it belongs to hydrocarbons, according to the molecular carbon, the more the number of hydrogen atoms, the more oxygen consumption, you can directly compare; if carbon, The number of hydrogen atoms are different and more than a little less, you can press 1 carbon atoms and 4 hydrogen atoms oxygen consumption equivalent to carbon or hydrogen atoms after the same number can be compared. Such as: A, B two hydrocarbons total amount of material certain, no matter what the proportion of the two mixed, consumption of O2 is certain: (molecular weight B> A) then B than A more n carbon atoms, at the same time