How would you measure the amount of dissolved salt in the ocean?

1 Answer
Nov 18, 2016

Well, measure the salt content in a litre of sea water, and then estimate the total volume of the world's oceans in litres, and then multiply.


This site reports that the salt content of sea water is #35*g*L^-1#.

This site gives details on the volume of the world's oceans, but you will probably have to convert the units, and there is the usual muddle between #"US"# and #"imperial gallons"#. Good luck.

Only 1-2% of the world's water is potable, i.e. fresh. What does this suggest with regard to water resources?