Saltwater

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Reference Reference
# Wikipedia see ''Seawater'' [http://en.wikipedia.org/wiki/Seawater] # Wikipedia see ''Seawater'' [http://en.wikipedia.org/wiki/Seawater]
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Revision as of 12:51, 15 May 2010

Seawater or Salt water is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every kilogram, or every litre, of seawater has approximately 35 grams (1.2 oz) of dissolved salts (mostly, but not entirely, the ions of sodium chloride: Na+, Cl−). The average density of seawater at the ocean surface is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4 °C (39 °F)) because of the salts’ added mass. The freezing point of sea water decreases with increasing salinity and is about −2 °C (28.4 °F) at 35 g/L.[1].


Reference

  1. Wikipedia see Seawater [1]

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