Question 1

A solution has a pH of 8.72. What is the value of [H+]?

Accepted Answer

A) 5.2 × 10 − 6 
B) 1.9 × 10 − 9 
C) 5.2 × 10 − 8 
D) 1.9 × 10 − 5 
A) 5.2 × 10 − 6 
B) 1.9 × 10 − 9 
C) 5.2 × 10 − 8 
D) 1.9 × 10 − 5

Question 2

Nitric acid, HNO3, is a weak acid.

Accepted Answer

A) True 
 B)False

Question 3

Identify the substance with the lowest pH.

Accepted Answer

A) orange juice 
B) household ammonia 
C) baking soda, NaHCO3 
D) milk 
A) orange juice 
B) household ammonia 
C) baking soda, NaHCO3 
D) milk

Question 4

NaH2PO4 alone in a water solution could behave as a buffer.

Accepted Answer

A) True 
 B)False

Question 5

When an acid is analyzed by adding a measured quantity of base, the point at which all the acid has reacted is correctly called

Accepted Answer

A) the equivalence point. 
B) the neutral point. 
C) the endpoint. 
D) the analysis point. 
A) the equivalence point. 
B) the neutral point. 
C) the endpoint. 
D) the analysis point.

Question 6

In the Brønsted theory, both acids and bases are defined in terms of how substances lose or gain

Accepted Answer

A) OH-. 
B) H3O+. 
C) H+. 
D) Cl −  . 
A) OH-. 
B) H3O+. 
C) H+. 
D) Cl −  .

Question 7

pH changes can be determined with a(n)___.

Accepted Answer

A) pH meter 
B) chemical indicator 
C) indicating paper 
D) all of these 
A) pH meter 
B) chemical indicator 
C) indicating paper 
D) all of these

Question 8

​ Identify the set consisting of metals that react slowly with H + in steam but quite rapidly with higher H + concentrations such as those of acids.

Accepted Answer

A) Potassium and sodium 
B) Magnesium and aluminium 
C) Iron and nickel 
D) Mercury and gold 
A) Potassium and sodium 
B) Magnesium and aluminium 
C) Iron and nickel 
D) Mercury and gold

Question 9

​ The _____ _____ is a tabular representation of the tendencies of metals to react with H + .

Accepted Answer

Question 10

Sodium phosphate can be used as a driveway degreaser.  When added to water, the following equilibrium is attained.  Sodium phosphate is acting as a(n)______. Na3PO4 (aq) + 3H2O (l)   H3PO4 (aq) + 3OH- (aq)

Accepted Answer

A) Brønsted acid 
B) Brønsted base 
C) Arrhenius acid 
D) Arrhenius base 
A) Brønsted acid 
B) Brønsted base 
C) Arrhenius acid 
D) Arrhenius base

Question 11

How many equivalents are contained in 0.25 moles of H2SO4?

Accepted Answer

A) 0.25 
B) 0.13 
C) 0.50 
D) can vary 
A) 0.25 
B) 0.13 
C) 0.50 
D) can vary

Question 12

If a solution of acetic acid (a weak acid)is titrated with NaOH solution, what will be the pH at the equivalence point?

Accepted Answer

A) higher than 7 
B) lower than 7 
C) equal to 7 
D) can't predict 
A) higher than 7 
B) lower than 7 
C) equal to 7 
D) can't predict

Question 13

According to the Arrhenius theory, what is produced when an acid dissolves in water?

Accepted Answer

A) H+ 
B) OH- 
C) H3O+ 
D)    
A) H+ 
B) OH- 
C) H3O+ 
D)

Question 14

The reason pure water has a pH of 7 is that there is the same concentration of hydrogen and hydroxide ions on the self-ionization of water.

Accepted Answer

A) True 
 B)False

Question 15

When a solution of HNO3 is added to a solution of NaHCO3, the net ion equation for reaction that occurs is which of the following?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 16

The major difference between the Arrhenius Theory and the Brønsted Theory is that there is no hydrogen in the Brønsted Theory.

Accepted Answer

A) True 
 B)False

Question 17

KOH is a strong base.

Accepted Answer

A) True 
 B)False

Question 18

​ List the rules to be followed while naming the acidic water solutions of anhydrous compounds, such as HCl.

Accepted Answer

The following rules are used to name the

Question 19

NaCl is an example of a good buffer.

Accepted Answer

A) True 
 B)False

Question 20

What volume of 6.0 M HNO3 would be needed to make 500 mL of 0.50 M solution?

Accepted Answer

A) 6 mL 
B) 417 mL 
C) 42 mL 
D) 6 liters 
A) 6 mL 
B) 417 mL 
C) 42 mL 
D) 6 liters

Exam 9: Acids, Bases, and Salts

A solution has a pH of 8.72. What is the value of [H+]?

Nitric acid, HNO3, is a weak acid.

Identify the substance with the lowest pH.

NaH2PO4 alone in a water solution could behave as a buffer.

When an acid is analyzed by adding a measured quantity of base, the point at which all the acid has reacted is correctly called

In the Brønsted theory, both acids and bases are defined in terms of how substances lose or gain

pH changes can be determined with a(n)___.

​ Identify the set consisting of metals that react slowly with H + in steam but quite rapidly with higher H + concentrations such as those of acids.

​ The _____ _____ is a tabular representation of the tendencies of metals to react with H + .

Sodium phosphate can be used as a driveway degreaser. When added to water, the following equilibrium is attained. Sodium phosphate is acting as a(n)______. Na3PO4 (aq) + 3H2O (l) H3PO4 (aq) + 3OH- (aq)

How many equivalents are contained in 0.25 moles of H2SO4?

If a solution of acetic acid (a weak acid)is titrated with NaOH solution, what will be the pH at the equivalence point?

According to the Arrhenius theory, what is produced when an acid dissolves in water?

The reason pure water has a pH of 7 is that there is the same concentration of hydrogen and hydroxide ions on the self-ionization of water.

When a solution of HNO3 is added to a solution of NaHCO3, the net ion equation for reaction that occurs is which of the following?

The major difference between the Arrhenius Theory and the Brønsted Theory is that there is no hydrogen in the Brønsted Theory.

KOH is a strong base.

​ List the rules to be followed while naming the acidic water solutions of anhydrous compounds, such as HCl.

NaCl is an example of a good buffer.

What volume of 6.0 M HNO3 would be needed to make 500 mL of 0.50 M solution?

Matter, Measurements, and Calculations

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Electronic Structure and the Periodic Law

Forces Between Particles

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Organic Compounds: Alkanes

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A solution has a pH of 8.72. What is the value of [H⁺]?

Nitric acid, HNO₃, is a weak acid.

NaH₂PO₄ alone in a water solution could behave as a buffer.

Identify the set consisting of metals that react slowly with H ⁺ in steam but quite rapidly with higher H ⁺ concentrations such as those of acids.

The _ _ is a tabular representation of the tendencies of metals to react with H ⁺ .

Sodium phosphate can be used as a driveway degreaser. When added to water, the following equilibrium is attained. Sodium phosphate is acting as a(n)______. Na₃PO₄ _(aq) + 3H₂O _(l) H₃PO₄ _(aq) + 3OH^- _(aq)

How many equivalents are contained in 0.25 moles of H₂SO₄?

When a solution of HNO₃ is added to a solution of NaHCO₃, the net ion equation for reaction that occurs is which of the following?

List the rules to be followed while naming the acidic water solutions of anhydrous compounds, such as HCl.

What volume of 6.0 M HNO₃ would be needed to make 500 mL of 0.50 M solution?