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物質的量濃度的定義是一昇溶液中所含的溶質的物質的量,所以我們假設取1L溶液,那麼體積就是1000mL,它的質量就是1000ρ,【因為密度組織在這裡是g/mL】其中的溶質質量就是1000ρw,那麼再除以溶質的摩爾質量M,就是這一昇溶液中所含的溶質的物質的量,當然也就是這種溶液的物質的量濃度了.
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