February 20, 2017

Homework Help: Chemistry

Posted by Hannah on Sunday, February 19, 2012 at 9:10pm.

The vapor pressure of chloroform is 173.11 mm Hg at 25 degrees celsius. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin. Calculate the vapor pressure of the solution at 25 degrees celsius when 6.243g of aspirin (180.1g/mol) are dissolved in 244.5g of chloroform.


I did 6.243g aspirin / 180.1g = 0.0346 moles

244.5g / 119.40g = 2.04 moles

Yes im sorry I am sort of confused. So is the total number of moles what they gave me in the problem, 6.243?

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