Chemistry

what is the mole fraction of solute molality concertration for an aqueous solution that is 19% NaOH by mass?

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asked by Josh
  1. assume 1000kg solvent

    then .19(1000+M)=M

    solve for M, mass of solute.
    Now, molality= molessolute/1kg

    I assume you know how to calculate moles solute of NaOH

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