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在表示溶液中某溶质的浓度时,过去常使用“摩尔溶液”与“m溶液”这样的单位.它们对应的英文是:molar solution与 m solution.后者,在英文中也偶尔称为molal solution.表面上,它们都不像单位,却一直当作单位在用.例如:y摩尔溶液,y m溶液.前者,有时表示成y M溶液.显然它们无论如何表示,都不是法定计量单位而必须废除.摩尔溶液是物质的量浓度c(B)的单位.当使用分子作为基本单元时,即B为分子时,1摩尔深液即1mol/L的浓度.因此,应代之以“摩尔每升”或“摩尔每立方分米”.
When expressing the concentration of a certain solute in a solution, it is common to use units such as “molar solution” and “m solution.” The corresponding English words are: molar solution and m solution. The latter, also known in English as molal solution On the surface, they are not units, but they are always used as units, for example: y molar solution, ym solution, the former, sometimes expressed as yM solution, evidently they are, in any case, not statutory units and must be abolished The molar solution is the unit of mass concentration c (B) of a substance, and when a molecule is used as a basic unit, that is, 1 mol of a deep liquid, ie, 1 mol / L when B is a molecule, “Or” mole per cubic decimeter. "