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Q.

Aqueous NaOH solution is labelled as 10% by weight. Mole fraction of the solute in it is

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Detailed Solution

Conc. of NaOH solution = 10% (w/w)weight of solute (NaOH) = 10gweight of solution = 100weight of solvent(H2O) = 90gnH2O=9018=5 nNaOH=1040=0.25 χNaOH=nNaOHnH2O+nNaOH=0.250.25+5=0.255.25=121=0.0476
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Aqueous NaOH solution is labelled as 10% by weight. Mole fraction of the solute in it is