If \( 0.15 \mathrm{~g} \) of a solute dissolved in \( 15 \mathrm{~g} \) of solvent is boiled at ...

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If \( 0.15 \mathrm{~g} \) of a solute dissolved in \( 15 \mathrm{~g} \) of solvent is boiled at a temperature higher by \( 0.216{ }^{\circ} \mathrm{C} \) than that of the pure solvent. The molecular weight of the substance (molal elevation constant for the solvent is \( \left.2.16^{\circ} \mathrm{C}\right) \) is
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