\( 1.5 \mathrm{~g} \) of a monobasic acid when dissolved in \( 150 \mathrm{~g} \) of water lower...

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\( 1.5 \mathrm{~g} \) of a monobasic acid when dissolved in \( 150 \mathrm{~g} \) of water lowers the freezing point by \( 0.165^{\circ} \mathrm{C} .0 .5 \mathrm{~g} \) of the same acid when titrated, after dissolution in water, requires \( 37.5 \mathrm{ml} \) of \( \mathrm{N} / 10 \) alkali. Calculate the
\( \mathrm{P} \) degree of dissociation of the acid \( \left(\mathrm{K}_{\mathrm{f}}\right. \) for water \( \left.=1.86^{\circ} \mathrm{C} \mathrm{mol}^{-1}\right) \).

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