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neeraj_agarwal_1990 (887)

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Olaaa!! Perrrfect answer. 135  [241 rates]

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see..if a compound undergoes dissociation or association in a solvent...then no. of particles are changed...so colligative property changes....now to find the correct colligative effect...

i= observed effect/normal effect=(no. of moles after association or diss./initial moles)

also note that moles and molecular mass have inverse relation ...so...

i= normal mol. mass/ observed molar mass
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