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根据自己的实践,如何提高解计算题的效率,有一些不完全的体会。一、设未知量时,尤其要抓住主要矛盾,善于应用摩尔这一概念解决问题。摩尔与物质的量,摩尔质量,摩尔浓度,气体摩尔体积,反应热,克(质量),升(体积),克当量,克当量数,都有联系,存在着一定换算关系。抓住摩尔这个概念,就抓住了许多计算题的主要矛盾。使问题迎刃而解。再说,反应方程中分子式的系数之
According to their own practice, how to improve the efficiency of solving problems, there are some incomplete experience. First, when the unknown is set, it is particularly necessary to grasp the main contradiction and be good at applying the concept of Moore to solve the problem. Molar and the amount of material, molar mass, molar concentration, gas molar volume, heat of reaction, grams (mass), l (volume), gram equivalent, gram equivalent, have a connection, there is a certain conversion relationship. Grasping the concept of Moore captures the main contradiction of many calculation problems. Solve the problem. Again, the coefficients of the molecular formula in the reaction equation