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December 20, 2014

Homework Help: chemistry

Posted by Anonymous on Wednesday, February 25, 2009 at 11:55am.

Which of the following can be determined if the boiling-point elevation, the mass of solute and the molality of a given solution are known.

The identity of the solute
The polarity of the solute
The size of a molecule of the solute The molecular weight of the solute

My answer: the molecular weight of solute
Reason: m= (mass of solute/M.M. solute)/(kg solvent)
But- I don't know how I'd be able to get the mass of the solvent. Is it possible for me to assume the solvent to be 1 L and convert that to kg?

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