溶液中溶液的質(zhì)量分?jǐn)?shù)是溶質(zhì)質(zhì)量與溶液質(zhì)量之比。根據(jù)溶質(zhì)的計(jì)算公式得知溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)等于溶質(zhì)質(zhì)量與溶液質(zhì)量之比。液的質(zhì)量是一種表示溶液濃度的方法，通常以百分?jǐn)?shù)表示。應(yīng)該注意：溶質(zhì)的質(zhì)量分?jǐn)?shù)只表示溶質(zhì)質(zhì)量與溶液質(zhì)量之比，并不代表具體的溶液質(zhì)量和溶質(zhì)質(zhì)量。溶質(zhì)的質(zhì)量分?jǐn)?shù)計(jì)算式中溶質(zhì)質(zhì)量與溶液質(zhì)量的單位必須統(tǒng)一。