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Solutions and Colligative Properties

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

When CH3OH is dissolved in water, how many particles are in solution?

a)

1

b)

3

c)

4

d)

5

e)

6

2.

When KCl (potassium chloride) is dissolved in water, how many particles are in solution?

a)

1

b)

2

c)

3

d)

4

e)

6

3.

When CaBr2 is dissolved in water, how many particles will be in solution?

a)

1

b)

2

c)

3

d)

4

e)

5

4.

Which water-soluble compound below has the largest effect on freezing point?

a)
b)
c)

LiBr

d)

CaF2

5.

A solution that has the maximum amount of solute dissolved in the solvent is called __________________.

a)

saturated

b)

supersaturated

c)

unsaturated

d)

suspension

6.

A solution that has less than the maximum amount of solute dissolved in the solvent is called __________________.

a)

saturated

b)

supersaturated

c)

unsaturated

d)

suspension

7.

A solution that has more than the maximum amount of solute dissolved in the solvent is called __________________.

a)

saturated

b)

supersaturated

c)

unsaturated

d)

suspension

8.

Dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, and 0.04% carbon dioxide. What is the solvent in the solution we call air?

a)

nitrogen

b)

oxygen

c)

argon

d)

carbon dioxide

9.

What is the name for a substance that dissolves in water but does not form ions or conduct an electric current?

a)

electrolyte

b)

nonelectrolyte

c)

saturated

d)

insoluble

10.
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
11.
What does it mean to be "Soluble" ?
a)
Capable of being a solid.
b)
To have soul.
c)
Capable of being dissolved.
d)
To sink.
12.
What is a substance that is dissolved in another substance? 
a)
solution
b)
solute
c)
solvent
d)
compound
13.
When no more sugar will dissolve in a glass of water, the solution is
a)
unsaturated
b)
saturated
c)
supersaturated
d)
suspended
14.

This sugar solution would be considered

a)

Unsaturated

b)

Supersaturated

c)

Saturated

d)

Undefined

15.

This graph represents a(n) ___ solution of sugar.

a)

saturated

b)

supersaturated

c)

unsaturated

d)

undefined

16.
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
17.
Colligative properties depend on the _________ of the solute but not the __________ of the solute.
a)
 concentration; identity
b)
identity; concentration
c)
reactivity; nature
d)
nature; reactivity
18.

If the temperature stays the same, the solubility of gases in liquids

a)

increases with increasing pressure

b)

cannot reach equilibrium

c)

decreases with increasing pressure

d)

does not depend on pressure

19.

Electrolytes have a greater effect on colligative properties than nonelectrolytes do because electrolytes

a)

are volatile

b)

have higher boiling points

c)

produce fewer moles of solute particles per mole of solvent

d)

produce more moles of solute particles per mole of solvent

20.

What is the correct ion equation for NaF?

a)

NaF-> Na2+ + 2F-

b)

NaF-> Na+ + F-

c)

NaF-> Na- + F+

d)

None of the above

21.

Water is the solvent in the beakers. Which temperatures could be the boiling point for beaker 1?

a)

100oC

b)

95oC

c)

98oC

d)

105oC

e)

110oC

22.

While making homemade ice cream, you add rock salt to the ice. Which choice below provides the best explanation for why this is done?

a)

Adding salt to the ice will lower the freezing point by creating a solution that's freezing point is lower than just the ice.

b)

Adding salt to the ice will lower the freezing point by creating a solution that's freezing point is higher than just the ice.

c)

Adding salt to the ice will raise the freezing point by creating a solution that's freezing point is lower than just the ice.

d)

Adding salt to the ice will raise the freezing point by creating a solution that's freezing point is higher than just the ice.

23.

Making water warmer will ___ the amount of CO2(g) dissolved in it.

a)

lower

b)

raise

c)

not change

24.

In Denver, CO the amount of N2 dissolved in water at the same temperature is ___ in York, PA

a)

higher than

b)

lower than

c)

the same as

25.

Using the attached table, which of the solutions described in the table would have the highest boiling point?

a)

The solutions of solute X.

b)

The solution of solute Y.

c)

The solution of solute Z.

d)

All three solutions would have the same boiling point.

26.

Why is salt added to roads & walkways in the winter?

a)

It is added to lower the freezing point and prevent ice from forming.

b)

It is added to melt any ice that forms.

c)

It is added to prevent ice from forming & to melt any ice that does.

27.

Which of the following would best remove Sharpie marker from your wall if this marker is known to be non-water soluble.

a)

salt water

b)

ammonia, NH3

c)

acetone (finger nail polish remover) CH3COCH3

d)

distilled water

28.

Which of the following molecules does not dissolve in water?

a)

HF

b)

H2

c)

HCl

d)

HBr

29.

Which statement is true?

a)

CH3CH2CH2CH2CH2CH3 dissolves in water because of dispersion forces

b)

CH3F dissolves in water because of dipole-dipole forces

c)

CH4 dissolves in water because of hydrogen bonding

30.

Which of the following molecules would dissolve in oil, a nonpolar solvent?

a)

CHCl3

b)

NH3

c)

CCl4

d)

HBr

31.

Which molecule(s) will be soluble in water?

a)

CH4

b)

HCl

c)

H2

d)

CH3CH2OH

32.

Ammonia, NH3, dissolves in water because of ---- between the water and ammonia molecules.

a)

London dispersion forces

b)

Dipole - Dipole

c)

Hydrogen bonding

d)

covalent bonding

33.

Ingredient labels list ingredients in order of amount from most to least. Caffeine is --- in Coke.

a)

solvent

b)

solute

34.

For NH3(aq)... (check all that apply)

a)

NH3 is the solvent

b)

NH3 is the solute

c)

Water is the solvent

d)

Water is the solute

35.

K2SO4 dissolves in water because of ...

a)

dispersion forces

b)

dipole-dipole attractions

c)

hydrogen bonding

d)

ion-dipole attractions