The normal boiling point of methanol is 64.7°c. a solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 649.2 torr at 64.7°c. what is the mole fraction of methanol in this solution?

The mole fraction of methanol in the solution of methanol is 0.8542

P = Χ × P⁰

Where,

X = P/P⁰

X = 649.2torr/760torr

X = 0.8521

Therefore, the mole fraction of methanol in the solution of methanol is 0.8542.

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The mole fraction of methanol is 0.8542.

Raoult’s Law: p = χp°

χ = p/p° = 649.2 torr/760 torr = 0.8542

a polar bond is formed when electrons are shared unevenly between atoms