As follows:
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Chem question
2010-07-28 3:44 am
回答 (1)
2010-07-28 4:24 am
✔ 最佳答案
sea water contains 3.5% by mass of dissolved solidssodium chloride is 68% by mass in the dissolved solids
so 1000 g sea water contains 1000*3.5%*68%=23.8 g
so estimated mass is 24g → Ans = C
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https://hk.answers.yahoo.com/question/index?qid=20100727000051KK01491