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A 5.2 molal aqueous solution of methyl alcohol.What is the mole fraction of methyl alcohol in the soln?
Pls explain
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- maussyLv 710 years agoFavorite Answer
this means that you have 5.2 moles of methyl alcohol by kg of water
1 kg of water contains (molar weight of water is 18g) 1000/18=55.6 mole of water
mole fraction = moles of methanol)/ summ of moles methanol+water)
x= 5.2/(55.6+5.2)=0.0856=8.56%
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