Posted by **J** on Monday, January 22, 2007 at 10:19pm.

how about expressing 230 parts per thousand (ppt) of SO4^2- in mol

per kg?

230 ppt is 230 g/1000 g = 230 g/kg.

Convert 230 grams into mols and you have it.

SO, I come up with an answer of 2.39 mol/kg. Correct?

J

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