“Ａ·ａ％＋Ｂ·ｂ％＝（Ａ＋Ｂ）·ｃ％”巧解化学题镇原县临泾中学成荣昌在初中化学溶液计算题中有一类用两种不同浓度的同种溶液配制溶液的问题。问题的本质是两种溶液混和前后溶质的质量保持不变，特点是混和后得到的溶液浓度介于浓、稀溶液之间。计算的公式是“Ａ·... “A·a%+B·b%=(A+B)·c%” Qiao solution chemistry question Zhenyuan County, Linyi Middle School Cheng Rongchang There is a class of chemical solution solution in junior high school with two different concentrations of the same solution problem. The essence of the problem is that the mass of the solute remains unchanged before and after the two solutions are mixed. The feature is that the solution concentration obtained after mixing is between concentrated and dilute solutions. The formula for calculation is "A...