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Chemistry question, concentration, % to ppm
Peter Principle
Registered User regular
Registered User regular
I've got a substance that is 118 g/mol MW. It is 25% w/v concentration in a water solution.
So, there's 250 g of substance in 1000 mL of water here.
250 g of solute / 118 g per mol = 2.11 mol
1000 mL of water (1000 g water / 18 g per mol) = 55.5 mol
2.11/55.5 = 38 mol/1000 mol, or 38 ppt.
38 ppt = 38,000 ppm, right?
Or am I totally f'd up here?
Christ, basic chem was so long ago. Tempus fugit.
So, there's 250 g of substance in 1000 mL of water here.
250 g of solute / 118 g per mol = 2.11 mol
1000 mL of water (1000 g water / 18 g per mol) = 55.5 mol
2.11/55.5 = 38 mol/1000 mol, or 38 ppt.
38 ppt = 38,000 ppm, right?
Or am I totally f'd up here?
Christ, basic chem was so long ago. Tempus fugit.
"A man is likely to mind his own business when it is worth minding. When it is not, he takes his mind off his own meaningless affairs by minding other people's business." - Eric Hoffer, _The True Believer_
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