Given the following aqueous solutions?

Question

1) 0.75m (NH4)2SO4
2) 1.5m ethanol
3) 1.0m NaCl
4) 2.0m glucose
5) 1.0m CaSO4

a) which solution will have the lowest freezing point? explain
b) which solution will have the highest freezing point? explain

Answer 1

Find the number of particles in each (g-ions or molecules). The one with the most will have the lowest freezing point; the one with the least will have the highest freezing point. Respectively, they are (1) and (2)