1. Rank these aqueous solutions from highest to lowest normal freezing point: 0.1 m NaCl, 0.2 m CaCl2, 0.3 m

1. Rank these aqueous solutions from highest to lowest normal freezing point: 0.1 m NaCl, 0.2 m CaCl2, 0.3 m

K3PO4, 0.4 m C2H5OH

2. Rank these aqueous solutions from lowest to highest boiling point: 0.02 mol of NaCl in 100 g of water, 0.02 mol of Na2SO4 in 100 g of water, 0.02  mol of Cr3(PO4)2 in 100 g of water, 0.02 mol of C6H12O6 in 100 g of water.

Please explain your answer.

Thank you in advance.