溶质质量分数的计算是初三化学的重点知识之一,而有些试题如果按照常规思维方法解答,则耗时费力,过程繁冗.若能转换思维角度,采用巧妙的智取方法,则能收到事半功倍之效.下面例举三法,供同学参考. The calculation of solute mass fraction is one of the key knowledge in junior chemistry, and some questions that are answered in accordance with conventional thinking methods are time consuming and laborious. The process is cumbersome. If you can convert the thinking angle and use clever tactics, you can receive Do more with less. Here are three examples for students’ reference.