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Chemistry: Colligative Properties

Total questions: 23

Worksheet time: 15mins

Name
Class
Date
1.

What type of substance dissolves in water but does not form ions or conduct electricity?

a)

electrolyte

b)

nonelectrolyte

c)

saturated

d)

insoluble

2.
Colligative properties depend on the _____ of solute particles in solution.
a)
type
b)
number
c)
pH
d)
nature
3.
The freezing point of a solution is ____ the freezing point of the pure solvent.
a)
the same as
b)
lower than
c)
higher than
d)
no relation to
4.
The boiling point of a solution is ______ the boiling point of the pure solvent.
a)
higher than
b)
the same as
c)
lower than
d)
higher or lower than
5.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
6.
What is happening at the boiling point?
a)
liquid to gas
b)
gas to liquid
c)
solid to liquid
d)
liquid to solid
7.

The vapor pressure of a pure solvent is ___________ that of a solution

a)

more than

b)

less than

c)

equal to

8.
The boiling point of a solution is ______ the boiling point of the pure solvent.
a)
higher than
b)
the same as
c)
lower than
d)
higher or lower than
9.

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

a)

1.0 mol/L sucrose (C12H22O11)

b)

1.0 mol/L lithium chloride (LiCl)

c)

1.0 mol/L sodium phosphide (Na3P)

d)

1.0 mol/L magnesium fluoride (MgF2)

10.

Which of the following compounds will be most effective in melting the ice on the roads when the air temperature is below zero?


a)

sodium iodide (NaI)

b)

magnesium sulfate (MgSO4)

c)

potassium bromide (KBr)

d)

all will be equally effective

11.

Which sample, when dissolved in 1.0 liter of water, produces a solution with the lowest freezing point?

a)

0.1 mol of C2H5OH

b)

0.1 mol of LiBr

c)

0.2 mol of C6H12O6

d)

0.2 mol of CaCl2

12.

Compared to the freezing point and boiling point of water at 1 atmosphere, a solution of a salt and water at 1 atmosphere has a

a)

lower freezing point and a lower boiling point

b)

lower freezing point and a higher boiling point

c)

higher freezing point and a lower boiling point

d)

higher freezing point and a higher boiling point

13.

Compared to the freezing point of 1.0 M KCl(aq) at standard pressure, the freezing point of 1.0 M CaCl2(aq) at standard pressure is

a)

lower

b)

higher

c)

the same

14.

The table above gives information about four aqueous solutions at standard pressure.

Which list of solutions is arranged in order from highest boiling point to lowest boiling point?

a)

A, B, D, C

b)

A, C, B, D

c)

C, D, B, A

d)

D, B, C, A

15.

What kind of molecule is water?

a)

Ionic

b)

Polar Covalent

c)

Nonpolar Covalent

d)

Metallic

16.

Water sticks well to many materials. What term relates to this property of water?

a)

cohesion

b)

adhesion

c)

density

d)

surface tension

17.

Which of the following is an example of COHESION?

a)

water sticking to water

b)

water sticking to glass

c)

tape sticking to paper

d)

hydrogen sticking to oxygen

18.

Which of the following can water dissolve?

SELECT ALL THAT APPLY!

a)

Ionic Compounds

b)

Polar Compounds

c)

Nonpolar Compounds

19.

Hexane is a Nonpolar Solvent. Which of the following would dissolve in it?

a)

NaCl

b)

Mineral Oil

c)

Water

d)

My Hopes and Dreams

20.

Water is known as the Universal Solvent.

What does that mean?

a)

Water can dissolve most things

b)

Water can be dissolved by most things

21.

If you dissolve 260g sugar at 50ºC in 100g H2O, what type of solution would you have?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

22.

If you dissolve 100g KNO3 at 40ºC in 100g H2O, what type of solution would you have?

a)

Saturated

b)

Unsaturated

c)

Supersaturated

23.

If you dissolve 60g NaNO3 at 40ºC in 100g H2O, what type of solution would you have?

a)

Saturated

b)

Unsaturated

c)

Supersaturated