Question

計(jì)算公式：溶質(zhì)的質(zhì)量分?jǐn)?shù)=

 

．
溶質(zhì)質(zhì)量=

 

×溶質(zhì)質(zhì)量分?jǐn)?shù)．
溶液質(zhì)量=

 

÷

 

=

 

 質(zhì)量+

 

質(zhì)量．

Answer 1

考點(diǎn)：溶質(zhì)的質(zhì)量分?jǐn)?shù)

專題：溶液、濁液與溶解度

分析：本題考查基礎(chǔ)的溶質(zhì)的質(zhì)量分?jǐn)?shù)的計(jì)算公式，以及公式的轉(zhuǎn)化運(yùn)用．

解答：解：溶質(zhì)的質(zhì)量分?jǐn)?shù)=

溶質(zhì)的質(zhì)量

溶液的質(zhì)量

×100%；     
溶質(zhì)質(zhì)量=溶液的質(zhì)量×溶質(zhì)質(zhì)量分?jǐn)?shù)．；
溶液的質(zhì)量=溶質(zhì)的質(zhì)量÷溶質(zhì)的質(zhì)量分?jǐn)?shù)=溶質(zhì)的質(zhì)量+溶劑的質(zhì)量

點(diǎn)評(píng)：要準(zhǔn)確把握有關(guān)溶質(zhì)質(zhì)量分?jǐn)?shù)的計(jì)算公式，根據(jù)實(shí)際并會(huì)靈活運(yùn)用其解決關(guān)于溶液的實(shí)際問(wèn)題．