Question

46g of the ethyl alcohol is dissolved in Q18g of water.calculate the mole fraction of ethyl alchol

Answer 1

Answer:

WEIGHT OF ETHANOL = 46g

MASS OF ETHANOL = 32g

NO. OF MOLES IN ETHANOL = 46/32 = 1.43 moles

WEIGHT OF WATER = 18g

MASS OF WATER = 18g

NO. OF MOLES IN WATER = 18/18 = 1 mole

MOLE FRACTION OF ETHANOL = 1.43/1+1.43

                                                    = 1.43/2.43

                                                       = 0.58