Question

100克食鹽溶液蒸干后得到16克的食鹽，原食鹽溶液的溶質(zhì)質(zhì)量分?jǐn)?shù)是多少？

Answer 1

【答案】分析：從題中信息“100克食鹽溶液蒸干后得到16克的食鹽”可知，溶液的質(zhì)量是100g，溶液中溶質(zhì)的質(zhì)量是16g，利用溶質(zhì)的質(zhì)量分?jǐn)?shù)=×100%進(jìn)行解答即可得到原食鹽溶液的溶質(zhì)質(zhì)量分?jǐn)?shù)．
解答：解：從題中信息“100克食鹽溶液蒸干后得到16克的食鹽”可知，原食鹽溶液的質(zhì)量是100g，溶液中溶質(zhì)的質(zhì)量是16g，因此原食鹽溶液的溶質(zhì)質(zhì)量分?jǐn)?shù)為：×100%=16%．
答：原食鹽溶液的溶質(zhì)質(zhì)量分?jǐn)?shù)為16%．
點(diǎn)評(píng)：本題難度不大，掌握溶質(zhì)質(zhì)量分?jǐn)?shù)的有關(guān)計(jì)算并能靈活運(yùn)用即可正確解答本題．