Colligative Properties

Question 1

Molar mass is equals to

Answer 1

mass given/moles solved

Question 2

Where are colligative properties used for?
A. Finding equivalent weight
C. Determine the arrangement of molecules
B. Determination of molar mass
D. Finding melting and boiling points

Answer 2

B

Question 3

Where does colligative property depend upon?
A. Type of solvent used
C. Number of solute particles
B. Type of solute particle
D. Both the type and number of solute particles

Answer 3

C

Question 4

When we add a non-volatile solute to a solvent which effect is seen?
A. Vapor pressure increases
C. Osmotic pressure decreases
B. Freezing point increases
D. Vapor pressure decreases

Answer 4

D

Question 5

Which of the following aqueous solutions will have the lowest freezing point?

A. 0.1 m sodium chloride

C. 0.1 m aluminum nitrate

B. 0.2 m sucrose

D. All of these solutions freeze at the same

temperature

Answer 5

C

Question 6

c conversion to K

Answer 6

273+c

Question 7

Benzene has a higher vapor pressure than Toluene. Which compound has the higher boiling
point?
A. Benzene
C. Both
B. Toluene
D. It is not possible to determine this from the given
information

Answer 7

B

Question 8

The vapor pressure of a pure substance is measured to be 812 mmHg at a specific temperature. A
nonvolatile solute is added to this substance and the vapor pressure is measured to be 400
mmHg. What is the mole fraction of the non-volatile solute?

Answer 8

0.493

Question 9

Freezing Point Eq

Answer 9

Delta-Fp=i Kf m

Question 10

Boiling point eq

Answer 10

Delta+Tb=KbMi

Question 11

Vapor Pressure eq

Answer 11

Psoln=X solvent•Psolvent

Question 12

vapor Pressure

Answer 12

up down

Question 13

boiling

Answer 13

down down up up

Question 14

Frezzing point

Answer 14

down up