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Solutions Review

Total questions: 40

Worksheet time: 3600secs

Name
Class
Date
1.
The _____is the part that gets dissolved. 
a)
solute 
b)
solvent 
c)
solution 
d)
Sacajawea 
2.
The universal solvent is ______. 
a)
sodium 
b)
acid 
c)
water 
d)
wind 
3.
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.
4.

Select all of the units for molarity.

a)
mass/liters
b)
moles
c)
liters
d)
moles/liter
e)

M

5.
A measure of the amount of solute in a given amount of solvent or solution is...
a)
saturated
b)
solubility
c)
concentration
d)
miscible
e)

molarity

6.
A saturated solution is one that....
a)
contains the maximum amount of dissolved solute.
b)
contains less solute than a saturated solution.
c)
contains more solute than a saturated solution.
d)
is the amount of a substance required to form a saturated solution.
7.
A supersaturated solution is one that....
a)
contains the maximum amount of dissolved solute.
b)
contains less solute than a saturated solution.
c)
contains more solute than a saturated solution.
d)
is the amount of a substance required to form a saturated solution.
8.
An unsaturated solution is one that....
a)
contains the maximum amount of dissolved solute.
b)
contains less solute than a saturated solution.
c)
contains more solute than a saturated solution.
d)
is the amount of a substance required to form a saturated solution.
9.
What is the molarity of a 2 liter solution containing 5 moles of NaCl?
a)
2.5
b)
0.4
c)
2.5 moles/liter
d)
10 moles/liter
10.

How many moles of NaCl are present in 6000 mL of a 1.5 M NaCl solution?

a)
9 moles NaCl
b)
9000
c)
9
d)
4000  moles NaCl
11.

Using the graph above, which of these solutions contains the most solute at 20°?

a)

KCl

b)

NaCl

c)

KNO3

d)

KClO3

12.

Using the graph above, how many grams of KCl can be dissolved in 300g of water at 40° C?

a)

30g

b)

50g

c)

120g

d)

40g

13.

What is the molarity of a NaCl solution when 11 moles are dissolved in 33L?

a)

3.63

b)

36.3 M

c)

0.3 M

d)

3.3 M

14.

The moles of solute can be determined by multiplying the molarity of the solute by the volume of solvent.

a)

True

b)

False

15.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
16.
Which substance is MOST soluble at 0 ºC?
a)
KI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
17.
When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
18.
What does it mean to dilute a solution?
a)
lower the concentration of solute per solvent
b)
increase the concentration of solute per solvent
19.
You can make a solution more concentrated by adding __________.
a)
solute
b)
solvent
c)
water
20.

Which of the following would result in being able to dissolve a greater amount of solid in a solution?

a)

Lower the temperature.

b)

Decrease the pressure of the solution.

c)

Increase the pressure of the solution.

d)

Heat the solution.

21.

Which of the following would result in being able to dissolve a greater amount of gas in a solution?

a)

Lower the temperature of the solution.

b)

Decrease the pressure of the solution.

c)

Stir the solution.

d)

Heat the solution.

22.

You have some leftover soda after a party. Eventually, the soda will go flat. Which of the following options will slow the rate at which the CO2 escapes?

a)

Stir the soda.

b)

Store the soda bottle in the fridge.

c)

Store the soda in your hot car.

d)

Store the soda bottle in the room temperature cabinet.

23.

Which of the following statements is true?

a)

An increase in temperature decreases the solubility of most solids, but increases the solubility of gases.

b)

An increase in temperature increases the solubility of most solids and gases.

c)

An increase in temperature decreases the solubility of most solids and gases.

d)

An increase in temperature increases the solubility of most solids, but decreases the solubility of gases.

24.

Which of the following would increase the rate of dissolution of a solid?

a)

Cool the solid solute and the solution.

b)

Shake the solution.

c)

Evaporate the solvent.

d)

Break the solvent into smaller particles.

25.

Which of the following would increase the rate of dissolution of a solid?

a)

Cool the solution.

b)

Decrease the surface area of the solute.

c)

Increase the polarity of the solution.

d)

Break the solute into smaller particles.

26.

extent to which a solute may be dissolved in water, or any solvent

a)

buffer solution

b)

aqueous

c)

miscible

d)

solubility

27.

Molecules that stick to the same type of molecules.

a)

cohesion

b)

adhesion

c)

hydrophilic

d)

hydrophobic

28.

Ice floats on water because

a)

adhesion

b)

cohesion

c)

water expands when it freezes

d)

water shrinks when it freezes

29.

When salt is dissolved in water, water is the

a)

solvent

b)

solute

c)

solution

d)

reactant

30.
molecule in which opposite ends have opposite electric charges
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
31.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)

Dissolves many substances

32.
Which term refers to water having partial positive and a partial negative charge?
a)
cohesion
b)
surface tension
c)
polarity
d)
adhesion
33.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
34.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
35.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
36.
Which of the following is LEAST likely to dissolve in water?
a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
37.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
 Water acts as a buffer.
38.
 Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?
a)
The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet
c)
The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
39.
The charge of oxygen in a water molecule is ______________.
a)
negative
b)
neutral
c)
positive
d)
balanced
40.

What substance can water dissolve?

a)

wax

b)

butter

c)

oil

d)

salt

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