Calculate the molarity of a solution of ethanol in water in which the mole fraction of ethanol is 0.040.(assume the density of water to be one).
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Calculate the molarity of a solution of ethanol in water in which the mole fraction of ethanol is 0.040.(assume the density of water to be one).
Mole fraction of ethanol is given by Our aim is to find the number of moles of ethanol in 1L of the solution which is nearly = 1L of water. Number of moles in 1L of water Substituting the values of in eq. (1) we have
Hence molarity of the solution = 2.31 M
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in eq. (1) we have
