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Solutions Review

Total questions: 42

Worksheet time: 33mins

Name
Class
Date
1.
Which is an example of a thoroughly mixed homogeneous mixture of substances in a single phase?
a)
colloid
b)
suspension
c)
solution
d)
compound
2.
Which will dissolve the fastest?
a)
block of salt in cold water
b)
block of salt in hot water
c)
table salt in cold water
d)
table salt in hot water
3.
When you raise the temperature, what happens to solvent-solute collisions?
a)
less frequent and more energetic
b)
more frequent and more energetic
c)
less frequent and less energetic
d)
more frequent and less energetic
4.
If there is less solute than the maximum amount, the solution is said to be
a)
saturated
b)
unsaturated
c)
supersaturated
d)
concentrated
5.
If there is the maximum amount of solute in a solution, it is said to be
a)
satured
b)
unsaturated
c)
supersaturated
d)
concentrated
6.
If there is more than the maximum amount of solute particles in a solution, it is said to be
a)
saturated
b)
unsaturated
c)
supersaturated
d)
concentrated
7.
At equilibrium...
a)
rate dissolution = rate crystallization
b)
rate dissolution > rate crystallization
c)
rate dissolution < rate crystallization
d)
no dissolution occurs
8.
When using "like dissolves like", you are looking at what similarity in solvent and solute?
a)
mass
b)
energy
c)
polarity
d)
state of matter
9.
During solvation, which particles will interact?
a)
solute only
b)
solvent only
c)
solute and solvent
d)
none of the above
10.
As you increase the pressure of a gas, its solubility in a liquid will
a)
decrease
b)
increase
c)
stay the same
d)
pressure has no effect on the solubility of a gas in a liquid
11.
Which of the following describes a colloid?
a)
mixture of 2 different phases of matter
b)
mixture of the same phases of matter
c)
acts like a solid and a liquid
d)
none of the above
12.
What is true of a solute?
a)
substance that does the dissolving
b)
substance the is being dissolved
c)
always a solid
d)
none of the above
13.
What is the term used to describe a substance is able to be dissolved in a solvent?
a)
soluble
b)
miscible
c)
insoluble
d)
immiscible
14.
Which is an example of an insoluble solution?
a)
oil in water
b)
sugar in tea
c)
antifreeze
d)
all of the above
15.
What is the term used to describe a solution with a large amount of solute.
a)
dilute
b)
saturated
c)
concentrated
d)
supersaturated
16.
Why do we need to use molality?
a)
temperature changes volume
b)
temperature changes mass
17.
Which of the following does not affect solvation?
a)
agitation
b)
surface area
c)
temperature
d)
density
18.
As the temperature of a gas increases, what happens to the solubility of the gas in a liquid?
a)
decreases
b)
increases
c)
does not change
19.

What will happen to the surface tension of water when soap is added?

a)

surface tension will increase

b)

surface tension will decrease

c)

surface tension will not change

20.

What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)

a)

0.8 M

b)

1.5M

c)

3.0M

d)

6.0M

21.

A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility

a)

lowering the temperature of the solvent

b)

stirring the solute in the solution

c)

increasing the pressure on the solution

d)

increasing the particle size of the solute

22.
How many moles of NaCl are present in a solution with a molarity of 8.59M and 125 mL of solution?
a)
1.07 gram
b)
62.7 mol
c)
1.07 mol
d)
62.7 grams
23.
What is the molality of a solution containing 1.3 mol in 13.4 kg of solution?
a)
9.7 m
b)
17.42 m
c)
0.097 m
24.
What is the molality of 1.2 g of HCl in 750 g of solution?
a)
0.04 m
b)
0.00004 m
c)
0.0016 m
25.

Which would increase a substance's viscosity?

a)

larger particle size

b)

weaker intermolecular forces

c)

greater distance between particles

d)

increased temperature

26.

Which does surface tension mean?

a)

energy required to increase the surface of a liquid

b)

resistance to flow

c)

the tendency to evaporate

27.
What state of matter is X?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
28.
What state of matter is Y?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
29.
What state of matter is Z?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
30.
What is point A?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
31.
What is point B?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
32.
What change occurs from F to E?
a)
sublimation
b)
deposition
c)
melting
d)
condensation
33.
What change occurs from E to C?
a)
sublimation
b)
freezing
c)
melting
d)
boiling
34.
What change occurs from C to D?
a)
condensation
b)
vaporization
c)
melting
d)
sublimation
35.
The pressure is increased on a sample of water at 0 °C from 0 mmHg to 800 mmHg.  In order, what changes occur?
a)
deposition, melting
b)
sublimation, melting
c)
condensation, freezing
d)
deposition, freezing
36.
If the rate of boiling equals the rate of condensation...
a)
there is more liquid
b)
there is more vapor
c)
the system is in equilibrium
d)
 the system is working towards equilibrium
37.
why does a gas with a lower vapor pressure have a higher boiling point
a)
its molecules need more energy in order to break free from strong attraction
b)
there are strong forces of attraction between its particles
c)
it has a lower volatility
d)
all of the answer
38.

Which of these changes of state requires energy? (endothermic)

a)

freezing

b)

deposition

c)

condensation

d)

melting

39.

Which of these changes of state will give off energy? (exothermic)

a)

condensation

b)

sublimation

c)

vaporization

d)

melting

40.

Molecules at the surface of a liquid can enter the vapor phase only if

a)

equilibrium has not been reached

b)

the concentration of the vapor is zero

c)

their energy is high enough to overcome the attractive forces in the liquid

d)

condensation is not occurring

41.
What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250. mL?
a)
15.9 M
b)
0.636 M
c)
0.642 M
d)
1.59 M
42.

the most volatile substance will have the...

a)

lower boiling point

b)

higher boiling point

c)

highest molar mass

d)

strongest intermolecular forces

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