Practice question
Question
What is the mole fraction of chloroform (molar mass = 119.5 g/mol) in a solution containing 59.75 g of chloroform and 36 g of water?
Explanation
Moles of chloroform = (59.75/119.5) = 0.5 mol . Moles of water = (36/18) = 2 mol . Total moles = 0.5 + 2 = 2.5 . Mole fraction = (0.5/2.5) = 0.2 .
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