Question 1

Which is a conjugate acid base pair in the following equation? H2SO4 + H2O   HSO4 -1 + H3O +1

Accepted Answer

A) H2SO4 and HSO4 -1 
B) H2SO4 and H2O 
C) HSO4 -1 and H3O +1 
D) H3O +1 and H2SO4 
A) H2SO4 and HSO4 -1 
B) H2SO4 and H2O 
C) HSO4 -1 and H3O +1 
D) H3O +1 and H2SO4 A

Question 2

Which is a strong electrolyte?

Accepted Answer

A) sugar 
B) hypochlorous acid 
C) sodium hydroxide 
D) hydrosulfuric acid 
A) sugar 
B) hypochlorous acid 
C) sodium hydroxide 
D) hydrosulfuric acid C

Question 3

According to the Lewis acid definition,an acid is a substance that is able to accept a pair of electrons.

Accepted Answer

A) True 
 B)False  True

Question 4

Which acid and base will combine to form sodium sulfite?

Accepted Answer

A) NaOH and H2SO3 
B) NaOH and H2SO4 
C) Na(OH)2 and H2SO3 
D) Na(OH)2 and H2SO4 
A) NaOH and H2SO3 
B) NaOH and H2SO4 
C) Na(OH)2 and H2SO3 
D) Na(OH)2 and H2SO4

Question 5

In a 0.125 M aqueous solution of potassium phosphate,what is the molarity of each ion?

Accepted Answer

A) 0.125 M for the potassium ion and 0.250 M for the phosphate ion. 
B) 0.125 M for the potassium ion and 0.375 M for the phosphate ion. 
C) 0.375 M for the potassium ion and 0.125 M for the phosphate ion. 
D) 0.250 M for the potassium ion and 0.125 M for the phosphate ion. 
A) 0.125 M for the potassium ion and 0.250 M for the phosphate ion. 
B) 0.125 M for the potassium ion and 0.375 M for the phosphate ion. 
C) 0.375 M for the potassium ion and 0.125 M for the phosphate ion. 
D) 0.250 M for the potassium ion and 0.125 M for the phosphate ion.

Question 6

An aqueous solution is 18.7% by mass Na3PO4.What is the boiling point of this solution? The Kb for water is 0.512°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

Accepted Answer

A) 102.89°C 
B) 100.72°C 
C) 101.44°C 
D) 100.00 °C 
A) 102.89°C 
B) 100.72°C 
C) 101.44°C 
D) 100.00 °C

Question 7

What is the concentration of a H2SO4 solution if 15.0 mL of the solution is neutralized by 3.60 mL of a 0.65 M Ca(OH)2 solution?

Accepted Answer

A) 0.078 M 
B) 0.16 M 
C) 0.31 M 
D) 2.7 M 
A) 0.078 M 
B) 0.16 M 
C) 0.31 M 
D) 2.7 M

Question 8

How many times more concentrated is the hydrogen ion concentration in a solution with a pH of 3 than that with a pH of 5?

Accepted Answer

A) 2 times 
B) 10 times 
C) 100 times 
D) 1000 times 
A) 2 times 
B) 10 times 
C) 100 times 
D) 1000 times

Question 9

Which will dissociate when placed in water?

Accepted Answer

A) CH3OH 
B) HCl 
C) NaCl 
D) HClO4 
A) CH3OH 
B) HCl 
C) NaCl 
D) HClO4

Question 10

Which is the pH of a solution in which the concentration of hydroxide ion is greater than the concentration of hydrogen ion?

Accepted Answer

A) 7 
B) 2 
C) 6 
D) 13 
A) 7 
B) 2 
C) 6 
D) 13

Question 11

What is the freezing point of a 1.0 m aqueous solution of CaCl2? (The freezing point depression constant for water is 1.86 °C/m. )

Accepted Answer

A) -1.86 °C 
B) 1.86 °C 
C) -3.72 °C 
D) -5.58 °C 
A) -1.86 °C 
B) 1.86 °C 
C) -3.72 °C 
D) -5.58 °C

Question 12

Weak bases are weak electrolytes.

Accepted Answer

A) True 
 B)False

Question 13

The pH of an aqueous solution of hydrobromic acid solution is 1.2.How many mL of water should be added to 250.mL of this solution to increase the pH to 1.7?

Accepted Answer

The answer of The pH of an aqueous solution of...

Question 14

What are the spectator ions when hydrochloric acid reacts with sodium hydroxide?

Accepted Answer

A) Na +1 and H +1 
B) Cl -1 and OH -1 
C) H +1 and OH -1 
D) Na +1 and Cl -1 
A) Na +1 and H +1 
B) Cl -1 and OH -1 
C) H +1 and OH -1 
D) Na +1 and Cl -1

Question 15

An amphoteric substance is one that

Accepted Answer

A) may react as an acid or a conjugate acid 
B) may react as a salt 
C) may react as a base or a conjugate base 
D) may react as an acid or a base 
A) may react as an acid or a conjugate acid 
B) may react as a salt 
C) may react as a base or a conjugate base 
D) may react as an acid or a base

Question 16

The hydroxide ion is responsible for the properties of

Accepted Answer

A) acids 
B) bases 
C) salts 
A) acids 
B) bases 
C) salts

Question 17

Which is the pH of a solution in which the concentration of hydrogen ion is greater than the concentration of hydroxide ion?

Accepted Answer

A) 12 
B) 9 
C) 7 
D) 3 
A) 12 
B) 9 
C) 7 
D) 3

Question 18

A 400.g sample of aluminum sulfate is dissolved in 3000.mL of solution.
A.What is the molarity of the solution?
B.What is the molarity of aluminum ion in the solution?
C.What is the molarity of the sulfate ion in the solution?

Accepted Answer

A.0.390 M

Question 19

An aqueous solution is 12.5% in Na2CO3 and has a density of 1.19 g/mL.What is the molarity of this solution?

Accepted Answer

A) 0.117 M 
B)    
C) 14.9 M 
D)    
A) 0.117 M 
B)    
C) 14.9 M 
D)

Question 20

A solution of a strong base has a pH of 11.The concentration of hydronium ions in this solution is

Accepted Answer

A) 11 M 
B)    
C)    
D)    
A) 11 M 
B)    
C)    
D)

Which is a conjugate acid base pair in the following equation? H₂SO₄ + H₂O HSO₄^-1 + H₃O⁺¹

Which is a strong electrolyte?

According to the Lewis acid definition,an acid is a substance that is able to accept a pair of electrons.

Which acid and base will combine to form sodium sulfite?

In a 0.125 M aqueous solution of potassium phosphate,what is the molarity of each ion?

An aqueous solution is 18.7% by mass Na₃PO₄.What is the boiling point of this solution? The K_b for water is 0.512°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

What is the concentration of a H₂SO₄ solution if 15.0 mL of the solution is neutralized by 3.60 mL of a 0.65 M Ca(OH)₂ solution?

How many times more concentrated is the hydrogen ion concentration in a solution with a pH of 3 than that with a pH of 5?

Which will dissociate when placed in water?

Which is the pH of a solution in which the concentration of hydroxide ion is greater than the concentration of hydrogen ion?

What is the freezing point of a 1.0 m aqueous solution of CaCl₂? (The freezing point depression constant for water is 1.86^°C/m. )

Weak bases are weak electrolytes.

The pH of an aqueous solution of hydrobromic acid solution is 1.2.How many mL of water should be added to 250.mL of this solution to increase the pH to 1.7?

What are the spectator ions when hydrochloric acid reacts with sodium hydroxide?

An amphoteric substance is one that

The hydroxide ion is responsible for the properties of

Which is the pH of a solution in which the concentration of hydrogen ion is greater than the concentration of hydroxide ion?

A 400.g sample of aluminum sulfate is dissolved in 3000.mL of solution. A.What is the molarity of the solution? B.What is the molarity of aluminum ion in the solution? C.What is the molarity of the sulfate ion in the solution?

An aqueous solution is 12.5% in Na₂CO₃ and has a density of 1.19 g/mL.What is the molarity of this solution?

A solution of a strong base has a pH of 11.The concentration of hydronium ions in this solution is

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Exam 15: Acids, Bases, and Salts

Which is a conjugate acid base pair in the following equation? H2SO4 + H2O HSO4 -1 + H3O +1

Which is a strong electrolyte?

According to the Lewis acid definition,an acid is a substance that is able to accept a pair of electrons.

Which acid and base will combine to form sodium sulfite?

In a 0.125 M aqueous solution of potassium phosphate,what is the molarity of each ion?

An aqueous solution is 18.7% by mass Na3PO4.What is the boiling point of this solution? The Kb for water is 0.512°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

What is the concentration of a H2SO4 solution if 15.0 mL of the solution is neutralized by 3.60 mL of a 0.65 M Ca(OH)2 solution?

How many times more concentrated is the hydrogen ion concentration in a solution with a pH of 3 than that with a pH of 5?

Which will dissociate when placed in water?

Which is the pH of a solution in which the concentration of hydroxide ion is greater than the concentration of hydrogen ion?

What is the freezing point of a 1.0 m aqueous solution of CaCl2? (The freezing point depression constant for water is 1.86 °C/m. )

Weak bases are weak electrolytes.

The pH of an aqueous solution of hydrobromic acid solution is 1.2.How many mL of water should be added to 250.mL of this solution to increase the pH to 1.7?

What are the spectator ions when hydrochloric acid reacts with sodium hydroxide?

An amphoteric substance is one that

The hydroxide ion is responsible for the properties of

Which is the pH of a solution in which the concentration of hydrogen ion is greater than the concentration of hydroxide ion?

A 400.g sample of aluminum sulfate is dissolved in 3000.mL of solution. A.What is the molarity of the solution? B.What is the molarity of aluminum ion in the solution? C.What is the molarity of the sulfate ion in the solution?

An aqueous solution is 12.5% in Na2CO3 and has a density of 1.19 g/mL.What is the molarity of this solution?

A solution of a strong base has a pH of 11.The concentration of hydronium ions in this solution is

An Introduction to Chemistry

Standards for Measurement

Elements and Compounds

Properties of Matter

Early Atomic Theory and Structure

Nomenclature of Inorganic Compounds

Quantitative Composition of Compounds

Chemical Equations

Calculations From Chemical Equations

Modern Atomic Theory and the Periodic Table

Chemical Bonds: the Formation of Compounds From Atoms

The Gaseous State of Matter

Liquids

Solutions

Chemical Equilibrium

Oxidationreduction

Nuclear Chemistry

Introduction to Organic Chemistry Online Only

Introduction to Biochemistry Online Only

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Which is a conjugate acid base pair in the following equation? H₂SO₄ + H₂O HSO₄^-1 + H₃O⁺¹

An aqueous solution is 18.7% by mass Na₃PO₄.What is the boiling point of this solution? The K_b for water is 0.512°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

What is the concentration of a H₂SO₄ solution if 15.0 mL of the solution is neutralized by 3.60 mL of a 0.65 M Ca(OH)₂ solution?

What is the freezing point of a 1.0 m aqueous solution of CaCl₂? (The freezing point depression constant for water is 1.86^°C/m. )

An aqueous solution is 12.5% in Na₂CO₃ and has a density of 1.19 g/mL.What is the molarity of this solution?