溶質(zhì)的質(zhì)量分?jǐn)?shù)為溶質(zhì)質(zhì)量與溶液質(zhì)量之比。數(shù)學(xué)表達(dá)式:溶質(zhì)的質(zhì)量分?jǐn)?shù)=溶質(zhì)的質(zhì)量(g)÷溶液的質(zhì)量(g)×100%注意(1)質(zhì)量分?jǐn)?shù)與體積、密度的關(guān)系:溶質(zhì)的質(zhì)量分?jǐn)?shù)=溶質(zhì)的質(zhì)量(g)÷[溶液的體積(mL)×溶液密度(g/mL)]×100%(2)溶液稀釋和蒸發(fā) (共 1108 字) [閱讀本文] >>