Question

Which of the following solutions will have the lowest freezing point?

A. 1.0 mol/kg sucrose (C12H22O11)
B. 1.0 mol/kg lithium chloride (LiCl)
C. 1.0 mol/kg sodium phosphide (Na3P)
D. 1.0 mol/kg magnesium fluoride (MgF2)

Answer 1

B, C

Step-by-step explanation:

Answer 2

C. 1.0 mol/kg sodium phosphide (Na3P)

This is because it will produce 4 ions, and thus has the highest molalitiy. (more particles in solution lowers the freezing point)

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