\( \mathrm{NaOH} \) dissolve in water and form aqueous solution \( ...

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\( \mathrm{NaOH} \) dissolve in water and form aqueous solution
\( \mathrm{P} \) of \( \mathrm{NaOH} \). If mole fraction difference of \( \mathrm{NaOH} \) and

W water is 0.4 then calculate mole fraction of \( \mathrm{NaOH} \) in aqueous solution.
(A) \( \mathrm{X}_{\mathrm{NaOH}}=0.4 \)
(B) \( \mathrm{X}_{\mathrm{H}_{2} \mathrm{O}}=0.4 \)
(C) \( \mathrm{X}_{\mathrm{NaOH}}=0.7 \)
(D) \( \mathrm{X}_{\mathrm{NaOH}}=0.9 \)
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