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Question

Chemistry Question on Colligative Properties

Of the following 0.10 m0.10\,m aqueous solutions, which one will exhibit the largest freezing point depression?

A

\ceKCl\ce{KCl }

B

\ceC6H12O6\ce{C_6H_{12} O_6 }

C

\ceAl2(SO4)3\ce{Al_2(SO_4)_3 }

D

\ceK2SO4\ce{K_2 SO_4 }

Answer

\ceAl2(SO4)3\ce{Al_2(SO_4)_3 }

Explanation

Solution

Depression in freezing point ∝\propto vant Hoff's factor (i) for Al2(SO4)3−>i=5 {Al_2 (SO_4)_3 -> i = 5 }