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在化学计算中有不少计算题,按常规思维方法,从题知数据到最终求得结果需要经过多个步骤,解题过程相当繁琐.如果我们能够找到已知和待求量之间的联系,直接建立已知和待求量之间的关系式,在计算时,就可以省去中间步骤直接求解,使计算简化.这种解法,我们称之为关系法.利用关系法解题,关键是要正确分析已知量和待求量之间的关系,得出正确关系式.那么解题过程中,如何找到正确的关系式呢?一般来说,有以下两种途径:一是含有同种元素的
There are many computational problems in chemical calculations. According to conventional thinking methods, there are several steps that need to be taken from the knowledge of the data to the final result. The problem-solving process is quite tedious. If we can find the connection between known and required quantities To directly establish the relationship between the known and the demand, in the calculation, you can save the intermediate steps to solve directly, so that the calculation is simplified. This solution, we call it the relationship method. Use the relationship method to solve the problem, the key It is necessary to correctly analyze the relationship between the known quantity and the quantity to be worked out to arrive at the correct relational formula. Then how to find the correct relational formula in the problem solving process? In general, there are the following two ways: First, with the same Elemental