mole fraction of methanol in its 4.5 molal aqueous solution is
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Answer:
mole fraction of methanol in its 4.5 molal aqueous solution is
Explanation:
4.5 moles of Methane all are present in thousand gram of water
the number of moles of water is the given mass divided by molar mass
= 1000/18 = 55.5
total number of moles are the moles present in Methanol + the most present of water .
= 55.5 + 4.5 = 60.5
mole fraction is the ratio of moles present in solute divided by the ratio of moles in solution
= 4.5/60.5 = 0.07 .
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