9

Question 1

Strictly speaking, colligative properties do not apply to concentrated solutions

Answer 1

T

Question 2

Due to boiling point elevation, the boiling point of water is >100°C on top of the Rocky Mountains

Answer 2

F

Question 3

In the absence of a semipermeable membrane, the osmotic pressure of seawater is zero

Answer 3

F…osmotic is always zero even if there is membrane or not

Question 4

Adding a solute at constant T and P to a pure solvent A always decreases chemical potential of solvent A

Answer 4

T

Question 5

Adding a solute at constant T and P to a pure solvent A always decreases chemical potential of solute B

Answer 5

F

Question 6

Adding a solute to a pure solvent at constant T always lowers the vapor pressure of the solution

Answer 6

F

Question 7

When a salt is added to water to cause a boiling point increase by ΔTb=1.6°C, then the freezing point Tf will decrease by 1.6°C

Answer 7

F