Calculate the freezing point of a solution when \( 3 \mathrm{~g} \)...

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Calculate the freezing point of a solution when \( 3 \mathrm{~g} \) of \( \mathrm{CaCl}_{2}\left(\mathrm{M}=111 \mathrm{~g} \mathrm{~mol}^{-1}\right) \) was dissolved in \( 100 \mathrm{~g} \) of water, assuming \( \mathrm{CaCl}_{2} \) undergoes complete ionization. \( \left(\mathrm{K}_{\mathrm{f}}\right. \) for water \( \left.=1.86 \mathrm{Kkg} \mathrm{mol}^{-1}\right) \)
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