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OpenStudy (anonymous):
What is the mole fraction of solute and the molal concentration for an aqueous solution that is 20.0% NaOH by mass?
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OpenStudy (wolfe8):
Welcome to OpenStudy. For mole fraction, assume the total mass of the solution is 1L. Then 20/100 is the mass of NaOH. Find the number of mole.
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