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化学计算中,若两种反应物的量都为已知量,进行其它的化学计算则有二种可能的情形:一是两量刚好完全反应,这时无论用哪种物质的已知量均可进行其它的有关计算;二是两量不能完全反应,也就是反应后有一物质过剩,这时只能按不足量物质的已知量进行有关计算。下以一例谈谈不足量物质的几种判别方法。
In stoichiometry, if the amounts of both reactants are known quantities, there are two possible situations for other stoichiometric calculations: first, both quantities exactly react, no matter which quantity is known Other relevant calculations can be carried out. Secondly, the two quantities can not completely react, that is, there is an excess of material after the reaction. At this time, the relevant calculation can only be made according to the known quantity of the insufficient material. Under an example to talk about the lack of material several discriminant.