Hexavalent
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Registered: 29-12-2011
Location: Wales, UK
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Molar Mass from BP Elevation
I have recently decided to carry out an experiment in The Illustrated Guide to Home Chemistry Experiments by Robert Bruce Thompson, specifically lab
8:1.
Quick question - how does one determine the molar mass of a compound if you know its molality in solution, its measured boiling point and the boiling
point of pure solvent?
For example, if I had 100ml of a solution of NaCl of 6M/kg, knew its boiling point and also knew the boiling point of pure water, how would I get to
it's known Mr (58.44g/mol) or near about using a calculation?
Thanks
-Hexavalent
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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bahamuth
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By god, first hit on Google after search phrase "molar mass boiling point", Determining Molar Mass From Boiling Point Elevation
Think you need a intricate glassware instrument for this, saw one at the university when I worked there, but it was useless w/out its short range
ultra accurate thermometers.
The one I saw was similar as the last picture on this page, atleast IIRC the way it worked was precisely the same.
Any sufficiently advanced technology is indistinguishable from magic.
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