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2019-06-24View Original

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Por que que que que que为什么不能用叠加法计算氢氧化钠溶液的密度?
Reply #22019-06-25
2最近在研究氢氧化钠溶液的密度问题时,很难查到高于5%以上浓度的密度,就想用叠加法来计算出密度,结果我用度时,氢氧化钠的饱和溶液查得溶解度为得密度为1.53如果用氢氧化钠的相对密度得来计算得体积为48.1加上水的密度得总体积应该是得总质量是得这样计算出来的密度是得与查到的密度相差很远这这是为什么?请教高人指点!谢谢!
Reply #32019-06-25
本帖最后由 xzm881111 于 2019996-5-25 编辑 这个不是简单的计算出来的因为分子间的特性溶解与浓度不是简单的线性关系由于分子间有间隙溶液的体积不是等于溶剂体积+溶质体积的

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