Question 1

Lemon juice has a sour taste and turns litmus to red. Lemon juice is

Accepted Answer

A)  basic. 
B)  acidic. 
C)  neutral. 
D)  caustic. 
A)  basic. 
B)  acidic. 
C)  neutral. 
D)  caustic.

Question 2

Sulfuric acid is the leading chemical produced and used industrially. What is the formula for sulfuric acid?

Accepted Answer

A)  SO4 
B)  HSO4 
C)  H2(SO)4 
D)  H2SO4 
A)  SO4 
B)  HSO4 
C)  H2(SO)4 
D)  H2SO4

Question 3

Which of the following is/are characteristic(s) of bases?

Accepted Answer

A)  taste bitter 
B)  reacts with acids to form salts 
C)  produce hydroxide ions when added to water 
D)  All are characteristics of bases. 
A)  taste bitter 
B)  reacts with acids to form salts 
C)  produce hydroxide ions when added to water 
D)  All are characteristics of bases.

Question 4

A conjugate acid-base pair differ by one

Accepted Answer

A)  H atom. 
B)  O atom. 
C)  pH unit. 
D)  proton. 
A)  H atom. 
B)  O atom. 
C)  pH unit. 
D)  proton.

Question 5

Sodium bicarbonate is commonly known as

Accepted Answer

A)  baking soda. 
B)  baking powder. 
C)  washing soda. 
D)  cherry soda. 
A)  baking soda. 
B)  baking powder. 
C)  washing soda. 
D)  cherry soda.

Question 6

Aluminum hydroxide is a popular antacid. The formula of aluminum hydroxide is

Accepted Answer

A)  AlOH. 
B)  Al(OH)2. 
C)  Al(OH)3. 
D)  Al3OH. 
A)  AlOH. 
B)  Al(OH)2. 
C)  Al(OH)3. 
D)  Al3OH.

Question 7

Biodiesel fuels are more toxic to the environment than petroleum fuels are.

Accepted Answer

A) True 
 B)False

Question 8

An acid is strong if it

Accepted Answer

A)  is very concentrated. 
B)  makes acid-base indicators change color. 
C)  ionizes completely in water. 
D)  causes metals to corrode. 
A)  is very concentrated. 
B)  makes acid-base indicators change color. 
C)  ionizes completely in water. 
D)  causes metals to corrode.

Question 9

Citric acid is produced by oranges. When citric acid dissolves in water, it produces a relatively small number of hydronium ions. Citric acid is best described as a

Accepted Answer

A)  dilute acid. 
B)  concentrated acid. 
C)  weak acid. 
D)  strong acid. 
A)  dilute acid. 
B)  concentrated acid. 
C)  weak acid. 
D)  strong acid.

Question 10

The Arrhenius theory explains why ammonia, NH3, is basic, but the Bronsted-Lowry theory does not.

Accepted Answer

A) True 
 B)False

Question 11

The cheapest base is ________.

Accepted Answer

The answer of The cheapest base is ________....

Question 12

Lutefisk is a traditional Scandinavian food that is prepared by soaking a white fish, such as cod, in lye (NaOH). How does soaking the fish in lye "cook" it?

Accepted Answer

A)  A strong base will allow the fish to be heated to higher temperatures more quickly. 
B)  A strong base will break down or "denature" the protein in the fish. 
C)  A strong base will neutralize the fatty acids in the fish. 
D)  A strong base will raise the pH of blood in the fish. 
A)  A strong base will allow the fish to be heated to higher temperatures more quickly. 
B)  A strong base will break down or "denature" the protein in the fish. 
C)  A strong base will neutralize the fatty acids in the fish. 
D)  A strong base will raise the pH of blood in the fish.

Question 13

If a compound is a base according to the Arrhenius definition, it will also be a base according to the Bronsted-Lowry definition.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following form a conjugate acid-base pair?

Accepted Answer

A)  H2SO4 and SO42- 
B)  H3O+ and OH- 
C)  H2SO4 and HSO4- 
D)  CH4 and CH3OH 
A)  H2SO4 and SO42- 
B)  H3O+ and OH- 
C)  H2SO4 and HSO4- 
D)  CH4 and CH3OH

Question 15

If the concentration of a dilute solution of nitric acid is 0.0001 M, what is the pH of that solution?

Accepted Answer

A)  5 
B)  4 
C)  10 
D)  3 
A)  5 
B)  4 
C)  10 
D)  3

Question 16

Foods that are acidic can be identified by their ________ taste.

Accepted Answer

A)  bitter 
B)  sweet 
C)  salty 
D)  sour 
A)  bitter 
B)  sweet 
C)  salty 
D)  sour

Question 17

Ammonia is classified as a weak base in water. This means that it produces

Accepted Answer

A)  no hydroxide ions. 
B)  a relatively small fraction of the maximum number of possible hydroxide ions. 
C)  a relatively large fraction of the maximum number of possible hydroxide ions. 
D)  100% of the maximum number of possible hydroxide ions. 
A)  no hydroxide ions. 
B)  a relatively small fraction of the maximum number of possible hydroxide ions. 
C)  a relatively large fraction of the maximum number of possible hydroxide ions. 
D)  100% of the maximum number of possible hydroxide ions.

Question 18

A mixture of a weak acid and its conjugate base forms a(n)

Accepted Answer

A)  acid-base indicator. 
B)  buffer. 
C)  antacid. 
D)  acid rain. 
A)  acid-base indicator. 
B)  buffer. 
C)  antacid. 
D)  acid rain.

Question 19

The cheapest and most widely used commercial base is

Accepted Answer

A)  NH3 (ammonia). 
B)  Na2O (sodium oxide). 
C)  CaO (lime). 
D)  NaOH (lye). 
A)  NH3 (ammonia). 
B)  Na2O (sodium oxide). 
C)  CaO (lime). 
D)  NaOH (lye).

Question 20

Which of the following is a correct definition of an acid that is not dependent upon the solvent?

Accepted Answer

A)  Acids produce hydronium ions. 
B)  Acids are proton donors. 
C)  Acids produce hydroxide ions. 
D)  Acids are proton acceptors. 
A)  Acids produce hydronium ions. 
B)  Acids are proton donors. 
C)  Acids produce hydroxide ions. 
D)  Acids are proton acceptors.

Exam 7: Acids and Bases

Lemon juice has a sour taste and turns litmus to red. Lemon juice is

Sulfuric acid is the leading chemical produced and used industrially. What is the formula for sulfuric acid?

Which of the following is/are characteristic(s) of bases?

A conjugate acid-base pair differ by one

Sodium bicarbonate is commonly known as

Aluminum hydroxide is a popular antacid. The formula of aluminum hydroxide is

Biodiesel fuels are more toxic to the environment than petroleum fuels are.

An acid is strong if it

Citric acid is produced by oranges. When citric acid dissolves in water, it produces a relatively small number of hydronium ions. Citric acid is best described as a

The Arrhenius theory explains why ammonia, NH3, is basic, but the Bronsted-Lowry theory does not.

The cheapest base is ________.

Lutefisk is a traditional Scandinavian food that is prepared by soaking a white fish, such as cod, in lye (NaOH). How does soaking the fish in lye "cook" it?

If a compound is a base according to the Arrhenius definition, it will also be a base according to the Bronsted-Lowry definition.

Which of the following form a conjugate acid-base pair?

If the concentration of a dilute solution of nitric acid is 0.0001 M, what is the pH of that solution?

Foods that are acidic can be identified by their ________ taste.

Ammonia is classified as a weak base in water. This means that it produces

A mixture of a weak acid and its conjugate base forms a(n)

The cheapest and most widely used commercial base is

Which of the following is a correct definition of an acid that is not dependent upon the solvent?

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The Arrhenius theory explains why ammonia, NH₃, is basic, but the Bronsted-Lowry theory does not.