Question

what will be the mole fraction of water in c2h5oh solution containing equal number of moles of water and c2h5oh?
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Answer 1

Answer:

Explanation:

Mole fraction is the fraction of moles, so the formula is

X = n / n+N

Where x is mole fraction,

N is moles of solvent

n is moles of solute

So here c2h5oh is the solute

And solvent and solute are equimolar

So moles of solute (n) = moles of solvent (N)

Thus putting n = N In equation

X = n /n+n

X = n/2n

Cancelling n in numerator and denominator

We get X = 1/2 = 0.5

Thus mole fraction of c2h5oh is 0.5

Hope it helps