An aqueous solution of \( \mathrm{NaCl} \) contains math xmlns=http://www.w3.org/1998/Math/...

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An aqueous solution of \( \mathrm{NaCl} \) contains math xmlns=http://www.w3.org/1998/Math/MathML class=wrs_chemistrymn90/mn/math gram of water and \( 58.5 \mathrm{~g} \) of \( \mathrm{NaCl} \). If vapour pressure of water \( =720 \mathrm{~mm} \) of \( \mathrm{Hg} \) at that temperature, find vapour pressure of the solution assuming \( 100 \% \) dissociation.
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