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A 0.0020m aqueous solution of an ionic compound Co(NH_(3))_(5)(NO_(2))Clfreezes at -0.00732^(@)C. Number of moles of ions which 1 mol of ionic comound produces on being dissolved in water be (K_(f)=-1.86^(@)C//m)

Answer»

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Solution :`DELTA T_(F)= ixxk_(f)xxm`
`i=(Delta T_(f))/(k_(f)xxm)=(0.00732)/(1.86xx0.002)=2`.


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