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What is the mole fraction of NaOH in an aqueous solution that contains 16.9% NaOH by mass?

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    molefraction: moles of NaOH/totalmoles

    Assume 1000 total grams. Then 169 grams of NaOH, figure the moles of that. Also, figure the moles of 931 grams of water.

    molefraction: molesNaOH/(molewater+molesNaOH)

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