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溶质质量分数计算题是初中化学计算中的重点之一,为此,笔者对其题型归纳如下.一、固体物质未完全溶解型例1 氯化钠在20℃时的溶解度为36g,该温度下,氯化钠溶液中溶质的质量分数不可能是
The calculation of the solute mass fraction is one of the key points in the junior high school chemistry calculation. Therefore, the author summarized the following questions. First, the solid substance is not completely dissolved. Example 1 The solubility of sodium chloride at 20°C is 36 g. The mass fraction of solute in sodium chloride solution cannot be