A solution containing \( 2.5 \times 10^{-3} \mathrm{~kg} \) of a solute dissolved in \( 75 \time...

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A solution containing \( 2.5 \times 10^{-3} \mathrm{~kg} \) of a solute dissolved in \( 75 \times 10^{-3} \mathrm{~kg} \) of water boils at \( 373.535 \mathrm{~K} \). The molar mass of the solute is g mol \( ^{-1} \). [nearest integer] (Given: \( \mathrm{K}_{\mathrm{b}} \) \( \left(\mathrm{H}_{2} \mathrm{O}\right)=0.52 \mathrm{~K} \mathrm{Kg} \mathrm{mol}^{-1} \), boiling point of water \( \left.=373.15 \mathrm{~K}\right) \)
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