Question

What is the mole fraction of ethanol, C2H5OH, in an aqueous solution that is 50.0% ethanol by mass?
bobpursley
assume 1000g
molesEthanol=500/46
molesH2O=500/18

mole fractionEthanol=moleEthanol/total moles
= (500/46)/(500/46+500/18)
= 1/(1+46/18)
Calculate yourself .I hope u all have got brain...Right.!!
0.282

Related Questions

An aqueous solution of ethanol is 3.05 M in ethanol, CH3CH2OH. Calculate the mole fraction of ethano... What is the approximate molar fraction of ethanol c2h5oh in an aqueous solution in which the ethanol... An aqueous solution contains 64g of ethanol( C2H5OH) in 122 grams of solution. The mole fraction of... A solution is prepared by mixing 1.00g ethanol (C2H5OH) with 100.0g water to give a final volume of...