Question 1

A useful broad view of reactions between acids and bases involves the

Accepted Answer

A) transfer of protons. 
B) transfer of electrons. 
C) conversion of protons into electrons. 
D) ionization of atoms. 
A) transfer of protons. 
B) transfer of electrons. 
C) conversion of protons into electrons. 
D) ionization of atoms.

Question 2

Rainwater has a pH below 7 because raindrops absorb CO₂ which can react with water to form carbonic acid.

Accepted Answer

A) True 
 B)False

Question 3

What base is formed by the addition of potassium oxide to water?

Accepted Answer

A) KOH 
B) K₂OH 
C) KH 
D) KH₂ 
A) KOH 
B) K₂OH 
C) KH 
D) KH₂

Question 4

A buffer

Accepted Answer

A) resists changes in pH when small amounts of a strong acid or a strong base are added. 
B) is made up of a weak acid and its conjugate base. 
C) is made up of a weak base and its conjugate acid. 
D) All of the above are true. 
A) resists changes in pH when small amounts of a strong acid or a strong base are added. 
B) is made up of a weak acid and its conjugate base. 
C) is made up of a weak base and its conjugate acid. 
D) All of the above are true.

Question 5

Many medicines have a bitter taste which manufacturers attempt to disguise.Many medicines are probably

Accepted Answer

A) acids. 
B) bases. 
C) salts. 
D) neutral. 
A) acids. 
B) bases. 
C) salts. 
D) neutral.

Question 6

What is the conjugate base of HSO₃⁻?

Accepted Answer

A) H₂SO₄ 
B) H₂SO₃ 
C) HSO₄⁻ 
D) SO₃²⁻ 
A) H₂SO₄ 
B) H₂SO₃ 
C) HSO₄⁻ 
D) SO₃²⁻

Question 7

The pH of a sample of water from a river is 6.0.A sample of effluent from a food processing plant has a pH of 4.0.The concentration of hydronium ion in the effluent is

Accepted Answer

A) one and a half times (1.5x)larger than the river hydronium ion concentration. 
B) two times (2x)larger than the river hydronium ion concentration. 
C) four times (4x)larger than the river hydronium ion concentration. 
D) 100 times (100x)larger than the river hydronium ion concentration. 
A) one and a half times (1.5x)larger than the river hydronium ion concentration. 
B) two times (2x)larger than the river hydronium ion concentration. 
C) four times (4x)larger than the river hydronium ion concentration. 
D) 100 times (100x)larger than the river hydronium ion concentration.

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

Which is NOT a characteristic of bases?

Accepted Answer

A) taste bitter 
B) turn litmus red 
C) react with acids to form salts 
D) produce hydroxide ions when added to water 
A) taste bitter 
B) turn litmus red 
C) react with acids to form salts 
D) produce hydroxide ions when added to water

Question 10

A strong acid will not ionize completely in water.

Accepted Answer

A) True 
 B)False

Question 11

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 12

When an aqueous solution containing hydrochloric acid is just neutralized with an aqueous solution containing sodium hydroxide,the solution would taste

Accepted Answer

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

Question 13

H₃O⁺ is the

Accepted Answer

A) hydrate ion. 
B) hydrogen ion. 
C) hydroxide ion. 
D) hydronium ion. 
A) hydrate ion. 
B) hydrogen ion. 
C) hydroxide ion. 
D) hydronium ion.

Question 14

The acid in automobile batteries is

Accepted Answer

A) hydrochloric acid. 
B) nitric acid. 
C) phosphorus acid. 
D) sulfuric acid. 
A) hydrochloric acid. 
B) nitric acid. 
C) phosphorus acid. 
D) sulfuric acid.

Question 15

Phenolphthalein has often been used to monitor the progress of acid-base neutralization reactions.What color will phenolphthalein be if there is an excess of base present?

Accepted Answer

A) colorless 
B) green 
C) pink 
D) yellow 
A) colorless 
B) green 
C) pink 
D) yellow

Question 16

What is the conjugate acid of HSO₃⁻?

Accepted Answer

A) H₂SO₄ 
B) H₂SO₃ 
C) HSO₄⁻ 
D) SO₃²⁻ 
A) H₂SO₄ 
B) H₂SO₃ 
C) HSO₄⁻ 
D) SO₃²⁻

Question 17

Most of the sulfuric acid produced in this country is used for

Accepted Answer

A) cleaning products. 
B) manufacturing mortar and cement. 
C) manufacturing fertilizer. 
D) sweetening acidic soil. 
A) cleaning products. 
B) manufacturing mortar and cement. 
C) manufacturing fertilizer. 
D) sweetening acidic soil.

Question 18

A metal oxide will form an acid when it is dissolved in water.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A) taste sour 
B) turn litmus red 
C) react with bases to form salts 
D) All are characteristics of acids. 
A) taste sour 
B) turn litmus red 
C) react with bases to form salts 
D) All are characteristics of acids.

Question 20

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

Exam 7: Acids and Bases

A useful broad view of reactions between acids and bases involves the

Rainwater has a pH below 7 because raindrops absorb CO₂ which can react with water to form carbonic acid.

What base is formed by the addition of potassium oxide to water?

A buffer

Many medicines have a bitter taste which manufacturers attempt to disguise.Many medicines are probably

What is the conjugate base of HSO₃⁻?

The pH of a sample of water from a river is 6.0.A sample of effluent from a food processing plant has a pH of 4.0.The concentration of hydronium ion in the effluent is

An acid is strong if it

Which is NOT a characteristic of bases?

A strong acid will not ionize completely in water.

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

When an aqueous solution containing hydrochloric acid is just neutralized with an aqueous solution containing sodium hydroxide,the solution would taste

H₃O⁺ is the

The acid in automobile batteries is

Phenolphthalein has often been used to monitor the progress of acid-base neutralization reactions.What color will phenolphthalein be if there is an excess of base present?

What is the conjugate acid of HSO₃⁻?

Most of the sulfuric acid produced in this country is used for

A metal oxide will form an acid when it is dissolved in water.

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

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

Chemistry

Atoms

Atomic Structure

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Energy

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters