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浓度

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浓度指某物质在总量中所占的分量。

常用的浓度表示法有: 次数

质量百分浓度度=(溶质质量(g)/溶液质量(g))×100%=溶质质量(g)/(溶质质量(g)+溶剂质量(g))×100%
体积分数=(溶质体积(mL)/溶液体积(mL))×100%=溶质体积(mL)/(溶质体积(mL)+溶剂体积(mL))×100%
百万分浓度=溶质的质量(mg)/溶液的质量(kg)
质量摩尔浓度=溶质摩尔数(mol)/溶剂质量(kg)
1 m = 1 mol/kg
体积摩尔浓度=溶质摩尔数(mol)/溶液体积(L) 1 M = 1 mol/L
公式:c(溶液摩尔数的浓度mol/L)=n(溶质g)/v(溶液ml)
  • 质量浓度(m/V):指每单位体积的溶液中,溶质的质量。


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浓度
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