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

1 Answer
anor277
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.

Explanation:

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?

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