Determine the expected value of Delta T_{f} f | vedclass

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(C) The depression in freezing point is given by the formula $\Delta T_{f} = i 	imes K_{f} 	imes m$. For a $1 \ m$ urea solution,urea is a non-elect

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$3x \ K$

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(C) The depression in freezing point is given by the formula $\Delta T_{f} = i 	imes K_{f} 	imes m$. For a $1 \ m$ urea solution,urea is a non-electrolyte,so the van't Hoff factor $i = 1$. Thus,$\Delta T_{f} = 1 	imes K_{f} 	imes 1 = K_{f} = x \ K$. For a $1 \ m$ $CaCl_{2}$ solution,$CaCl_{2}$ dissociates as $CaCl_{2} ightarrow Ca^{2+} + 2Cl^{-}$,so the van't Hoff factor $i = 3$. Thus,$\Delta T_{f} = 3 	imes K_{f} 	imes 1 = 3 	imes x \ K = 3x \ K$.

Determine the expected value of $\Delta T_{f}$ for $1 \ m$ $CaCl_{2}$ solution if $1 \ m$ urea solution has $\Delta T_{f}$ value '$x$' $K$.

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