Question

Calculate the mole fractions in a solution that is made of 12.5 g of ethanol (C2H5OH)...

Calculate the mole fractions in a solution that is made of 12.5 g of ethanol (C2H5OH) and 47.5 g of water.
ethanol = ______________

water = ______________

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Answer #1

Amount of ethanol = 12.5 g

Molecular weight of ethanol,

Moles of ethanol =

Amount of water = 47.5

Molecular Weight of water = 18

Moles of water =

Mole fraction of ethanol =

Mole fraction of water = 1 - mole fraction of ethanol = 0.907

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