Elements and Compounds

How much percent of sodium and chlorine are present in sea water?

Answer

Wiki User
03/13/2013

The salinity in sea water varies from place to place and from time to time. One widely used reference* gives the following averages: sodium, 1.05 g/litre and chlorine (predominantly chloride ions), 1.90 g/litre.

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*Handbook of Chemistry and Physics, 66th Ed., page F-148.