Which liquid have the lowest freezing point

Question

Questions:

1. A saturated solution _______________.
a. cannot be attained
b. contains dissolved solute in equilibrium with undissolved solid
c. contains as much solvent as it can hold
d. will rapidly precipitate if a seed crystal is added
e. contains no double bonds

2. Which one of the following is most soluble in water?
a. CH₃CH₂OH
b. CH₃CH₂CH₂OH
c. CH₃CH₂CH₂CH₂OH
d. CH₃OH
e. CH₃CH₂CH₂CH₂CH₂OH

3. Which one of the following substances would be the most soluble in CCI₄?
a. CH₃CH₂OH
b. C₁₀H₂₂
c. H₂O
d. NaCI
e. NH₃

4. A supersaturated solution ____________.
a. is one that has been heated
b. must be in contact with undissolved solid
c. is one with more than one solute
d. is one with a higher concentration than the solubility
e. exists only in theory and cannot actually be prepared

5. The molality of a benzene solution prepared by mixing 12.0 g C₆H₆ with 38.0 g CCl₄ is _____________.
a. 0.316
b. 0.240
c. 0.622
d. 0.508
e. 4.04

6. Pressure has an appreciable effect on the solubility of ___________ in liquids.
a. liquids
b. salts
c. gases
d. solids
e. solids and liquids

7. As the concentration of a solute in a solution increases, the freezing point of the solution _________ and the vapor pressure of the solution _________.
a. increases, decreases
b. increases, increases
c. decreases, is unaffected
d. decreases, increases
e. decreases, decreases

8. Which liquid will have the lowest freezing point?
a. aq. 0.050 m glucose
b. aq. 0.030 m NaI
c. pure H₂O
d. aq. 0.030 m AlI₃
e. aq. 0.030 m CoI₂

9. What is the freezing point (°C) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 (formula weight = 164 g/mol) in 115 g of water? The molal freezing point depression constant for water is 1.86°C/m.
a. -3.34
b. -1.11
c. 3.34
d. 1.11
e. 0.00

10. Which one of the following 0.1 M aqueous solutions would have the lowest freezing point?
a. NaCl
b. Sucrose
c. K₂CrO₄
d. Na₂SO₄
e. Al(NO₃)₃