Grade 11Physical Chemistry
the mole fraction of the solution is 11.11 find its molality
the mole fraction of the solution is 11.11 find its molality
1 Answer
Rijit Singh
Hey you now mole fraction is moles of solute/moles of solute +moles of solution .
You can write 1.1/1.1+10 , so moles of solute are 1.1 and moles of solvent are 10.
molality is moles of solute / mass of solvent
if you are talking of aqueous solution,
so molality would be 1.1/mass of solvent
Here solvent is water , molecular weight of water is 18.
moles of water are 10 , so mass of solvent is 10 into 18 which is 180.
molality is 1.1/180
=0.006111111m
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