Calculate the mole fraction of Ethanol & H2o.When 0.5 mole of ethamal is mixed with 1.5 mole of Hi
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Answer:
The mole fractions of ethanol and water are 0.25 and 0.75 respectively.
Let 1 mol of the mixture be present.
The moles of ethanol and water will be 0.25 and 0.75 respectively.
The molar masses of ethanol and water are 46 g/mol and 18 g/mol respectively.
The masses of ethanol and water are 0.25×46=11.5 g and 0.75×18=13.5 g respectively.
The percentage concentration of ethanol by weight of mixture is
11.5+13.5
11.5
×100=46 %.
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