1. Tardigrade
  2. Question
  3. Chemistry
  4. Consider equimolal aqueous solutions of the following compounds: Urea, Glucose, NaCl, Na 2 SO 4, Sugar , Al 2( SO 4)3, K 2 SO 4 How many of the above aqueous solutions will have greater depression in freezing point than that of aqueous solution of non-volatile, nonelectrolyte solute (molar mass =120 g mol -1 ) of the same concentration?

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Q. Consider equimolal aqueous solutions of the following compounds: Urea, Glucose, $NaCl$, $Na _{2} SO _{4},$ Sugar , $Al _{2}\left( SO _{4}\right)_{3}, K _{2} SO _{4}$
How many of the above aqueous solutions will have greater depression in freezing point than that of aqueous solution of non-volatile, nonelectrolyte solute (molar mass $=120\, g\, mol ^{-1}$ ) of the same concentration?

Solutions

Solution:

Depression in freezing point is a colligative property and depends on the number of particles. Among the given, the aqueous solutions of $NaCl , Na _{2} SO _{4}, Al _{2}\left( SO _{4}\right)_{3}$ and $K _{2} SO _{4}$ will give more particles than the aqueous solution of nonvolatile, non-electrolyte solute of the same concentration.