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全日制十年制学校高中化学第一册教学参考书中推导的结果是:摩尔浓度=(1000×溶液的密度×百分比浓度)/(容质的摩尔质量) 这一公式不易为学生所理解,且存在着严重的局限性。 学生在应用这一公式时常常会产生下述的错误。即在计算中把密度的单位及摩尔质量的单位写上式子时,发现计算的结果是正确答案的1000倍。产生上述错误的原因是对公式中的1000理解不清。
The results deduced in the reference book for the first grade school of high school chemistry in full-time 10-year schools are: Molar concentration = (1000 × solution density × percentage concentration) / (molar mass of the solution) This formula is not easy for students to understand. And there are serious limitations. Students often have the following errors when applying this formula. That is, when the unit of the density and the unit of the molar mass are written in the equation, the result of the calculation is found to be 1000 times the correct answer. The reason for the above error is unclear to the 1000 in the formula.