Question 1
Predict the freezing point of a solution prepared by dissolving 8.9 g MgCl
2 in 98 g H
2O.
Kf for water is 1.86 °C
m-1.
◦ 3.5 °C
◦ -3.5 °C
◦ 5.3 °C
◦ -5.3 °C
◦ -0.51 °C
Question 2
Solutions are made that contain 0.1 moles of each of the following compounds below in 100 g of H
2O. Choose the compound whose solution will have the lowest freezing point.
◦ MgCl
2 ◦ KClO
3 ◦ CO
2 ◦ MgSO
4 ◦ NaBr