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Unit 8 Solutions, Acids, and Bases Review

Total questions: 30

Worksheet time: 2hrs 30mins

Name
Class
Date
1.
The parts of a solution are the
a)
salt and vapor.
b)
solvent and solid.
c)
solute and water.
d)
solute and solvent.
2.
In a solution, the solute is the substance that
a)
dissolves in the solvent.
b)
is in the greatest quantity.
c)
is the liquid.
d)
is a solid.
3.
Sugar dissolves in water through
a)
ionization.
b)
dissocation.
c)
neutralization.
d)
dispersion.
4.

A solution of hydrochloric acid in water is most likely to have a pH close to

a)
14.
b)
7.
c)

12.

d)
3.
5.
Substances that form ions when dissolved in water are called
a)
solutions.
b)
molecules.
c)
polar.
d)
electrolytes.
6.

What is the molarity of a salt solution made by dissolving 280 mg of NaCl in water? The final solution's volume was 2 mL.

a)

2.4 M

b)

2.4 m

c)

140 M

d)

2395. 6 M

7.

You have 3 L of a 2 M hydrochloric acid solution. How many moles of HCl does the solution contain?

a)

6 mol

b)

6 M

c)

1.5 M

d)

1.5 mol

e)

0.667 M

8.

What is the concentration as a percent by volume of a liquid solution that had 9.81 L of liquid solute dissolved in 145.6 L of liquid solvent?

a)

6.31%

b)

14.84%

c)

6.74%

d)

7.22%

9.

What is the concentration as a percent by mass of a 455 gram solution that has 45 grams of solute dissolved in it?

a)

9%

b)

10.11%

c)

9.89%

d)

10%

10.
What physical properties of a solution differ from those of its solutes and solvent?
a)
Conductivity
b)
Boiling point
c)
Melting point
d)
Composition
e)
Polarity
11.
Identify the factors that affect dissolving rate.
a)
Surface area
b)
Stirring
c)
Temperature
d)
Kind of solvent
e)
Kind of solute
12.
How does sodium chloride dissolve in water?
a)
Dissociation
b)
Dispersion
c)
Ionization
13.
How do dissociation and ionization differ?
a)
Dissociation keeps the ions that already exist; ionization forms new ions.
b)
Dissociation forms new ions; ionization keeps the ions that already exist.
c)
Dissociation causes the crystals to break into small pieces; ionization forms new ions.
d)
Dissociation causes the crystals to break into small pieces; ionization separates them into ions.
14.
Which of the following is not a term used to describe solutions with different amounts of solute?
a)
Unsaturated
b)
Saturated
c)
Supersaturated
d)
Undersaturated
15.
Identify the three factors that affect solubility of a solute.
a)
Polarity of solvent
b)
Temperature
c)
Pressure
d)
Stirring
e)
Concentration
16.

What is the molarity of a solution of hydrogen chloride and water if 182.29 g of hydrogen chloride was dissolved in 1 liter of water?

a)

5 M

b)

.2 M

c)

182.29 M

d)

5.142 M

17.

How much potassium nitrate is needed to make 9 liters of 2-molar solution?

a)

18 grams KNO3

b)

22.467 grams KNO3

c)

1819.836 grams KNO3

d)

202.204 grams KNO3

18.
Despite the name, dry cleaning does involve the use of liquid solvents. Which solvent(s) should a dry cleaner use to remove stains?
a)
Polar
b)
Nonpolar
c)
Ionic
d)
Acids/bases
19.
Identify the three general properties of acids.
a)
Taste bitter
b)
Taste sour
c)
Reactive with metals
d)
Slippery
e)
Ability to produce color changes in indicators
20.
Identify the three general properties of bases.
a)
Taste bitter
b)
Taste sour
c)
Ability to produce color changes in indicators
d)
Reactive with metals
e)
Slippery
21.
Identify the two general products of a neutralization reaction.
a)
A solution
b)
A salt
c)
Covalent compound
d)
Water
e)
Pepper
22.
Which would be called a proton donor?
a)
Acid
b)
Base
c)
Neutral
23.
If you needed to take a medicine to handle heartburn (the corrosion of your esophagus), what kind of compound should it be?
a)
An acid
b)
A base
c)
A neutral compound
24.
What are the products of reacting hydrochloric acid, HCl, and sodium hydroxide, NaOH?
a)
Sodium chloride
b)
Water
c)
Sodiochloric acid
d)
Metal salt
e)
Hydrogen gas
25.
What is the hydronium ion?
a)
H3O+
b)
H3O-
c)
OH-
d)
OH+
26.
How is pH related to the concentration of hydronium ions in solution?
a)
The more concentrated the hydronium ions, the higher the pH.
b)
The more concentrated the hydronium ions, the lower the pH.
c)
They aren't related.
27.
What determines the strength of acids and bases?
a)
The degree to which they ionize.
b)
The degree to which they dissociate.
c)
The degree to which they ionize or dissociate.
d)
The concentration of the acid or base.
28.
Suppose that you add another liter of water to a 1-molar solutions of hydrochloric acid, weakening the concentration. How would the pH of the solution change?
a)
The pH would be raised.
b)
The pH would be lowered.
c)
The pH would not be changed.
29.

A solution has a pH of 7. What kind of solution is it?

a)
An acid.
b)
A base.
c)
Neutral.
30.
What is a buffer?
a)
A solution that resist large changes in pH.
b)
A solution that contains a random salt.
c)
A solution that allows for large changes in pH.
d)
A solution that tells us the pH of a solution.

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