1. Which of the following compounds (each as a liquid) would be expected to be the best solvent for sodium fluoride?

BF3(l)
HF(l)
CF4(l)
PF5(l)
SF6(l)

2. Which of the following solutions would have the highest osmotic pressure?

0.20 M C12H22O11, sucrose
0.15 M NaCl, sodium chloride
0.15 M CaCl2, calcium chloride
0.20 M C6H12O6, glucose
0.20 M CH3COOH, acetic acid

3. Substance A has a greater molecular weight than substance B. If 50 grams of substance A are dissolved in 250 grams of water in one beaker and 50 grams of substance B are dissolved in 250 grams of water in another beaker.

-The vapor pressure of the two solutions will be equal.
-The solution of A will freeze at a lower temperature than the solution of B.
-The vapor pressure of solution A will be lower than the vapor pressure of solution B.
-The solution of A will have a higher osmotic pressure than the solution of B.
-The boiling point of solution A will be lower than the boiling point of solution B.

thanks guys