Question

an aqueous solution has molality 11.11. hence mole fraction of solute in the solution is

Answer 1

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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