Question 1

Which is a strong acid?

Accepted Answer

A) HNO3 
B) HNO2 
C) HClO 
D) HClO2 
A) HNO3 
B) HNO2 
C) HClO 
D) HClO2

Question 2

A 0.1 M HNO3 solution and a 0.1 M HNO2 solution have the same pH.

Accepted Answer

A) True 
 B)False

Question 3

In the following reaction,   water behaves as:

Accepted Answer

A) an acid. 
B) a base. 
C) a salt. 
D) a conjugate base. 
A) an acid. 
B) a base. 
C) a salt. 
D) a conjugate base.

Question 4

A solution is prepared by adding 35.5 mL of ethylene glycol,C2H6O2,to 250.0 g of water.What is the freezing point of this solution? The Kf for water is 1.86°C/m and the density of ethylene glycol is 1.1135 g/mL.Consider if the solute is an electrolyte or a nonelectrolyte.

Accepted Answer

A) −0.29°C 
B) −4.74°C 
C) −0.01°C 
D) 0.00°C 
A) −0.29°C 
B) −4.74°C 
C) −0.01°C 
D) 0.00°C

Question 5

What is the concentration of an HCl solution if 25.0 mL of the solution is neutralizedcompletely by 40.0 mL of a 0.30 M KOH solution?

Accepted Answer

A) 0.19 M 
B) 300 M 
C) 46.9 M 
D) 0.48 M 
A) 0.19 M 
B) 300 M 
C) 46.9 M 
D) 0.48 M

Question 6

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

Accepted Answer

A) HF and H3O +1   
B) HF and H2O 
C) H3O +1 and F -1 
D) HF and F -1 
A) HF and H3O +1   
B) HF and H2O 
C) H3O +1 and F -1 
D) HF and F -1

Question 7

What mass of sodium chloride should be added to 500.0 g of water in order to decrease its freezing point to -1.0 °C? The Kf for water is 1.86°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

Accepted Answer

A) 0.269 g 
B) 134 g 
C) 15.7 g 
D) 7.85 g 
A) 0.269 g 
B) 134 g 
C) 15.7 g 
D) 7.85 g

Question 8

Which is a strong electrolyte?

Accepted Answer

A) water 
B) acetic acid 
C) ammonia 
D) sodium chloride 
A) water 
B) acetic acid 
C) ammonia 
D) sodium chloride

Question 9

What is the conjugate base of NH3?

Accepted Answer

A) NH2 -1 
B) NH -2 
C) NH4 +1 
D) H +1 
A) NH2 -1 
B) NH -2 
C) NH4 +1 
D) H +1

Question 10

Which pH is most alkaline?

Accepted Answer

A) 1 
B) 5 
C) 7 
D) 12 
A) 1 
B) 5 
C) 7 
D) 12

Question 11

At 25 °C the concentration of H +1 in pure water is 1   10 -7 M.

Accepted Answer

A) True 
 B)False

Question 12

Which are the two Bronsted-Lowry bases in the following equation? HNO2 + H2O   H3O +1 + NO2 -1

Accepted Answer

A) H3O +1 and HNO2 
B) H2O and NO2 -1 
C) HNO2 and H2O 
D) H3O +1 and NO2 -1 
A) H3O +1 and HNO2 
B) H2O and NO2 -1 
C) HNO2 and H2O 
D) H3O +1 and NO2 -1

Question 13

Combining potassium hydroxide and sulfuric acid will produce water and

Accepted Answer

A) potassium sulfide. 
B) potassium sulfate. 
C) potassium sulfite. 
D) potassium hypersulfate. 
A) potassium sulfide. 
B) potassium sulfate. 
C) potassium sulfite. 
D) potassium hypersulfate.

Question 14

Which pH is most acidic?

Accepted Answer

A) 3 
B) 7 
C) 9 
D) 14 
A) 3 
B) 7 
C) 9 
D) 14

Question 15

What is the conjugate acid of OH -1?

Accepted Answer

A) O-2 
B) H +1 
C) O2H 
D) HOH 
A) O-2 
B) H +1 
C) O2H 
D) HOH

Question 16

What is the concentration of chloride ion in a 2.0 M solution of calcium chloride?

Accepted Answer

A) 1.0 M 
B) 2.0 M 
C) 3.0 M 
D) 4.0 M 
A) 1.0 M 
B) 2.0 M 
C) 3.0 M 
D) 4.0 M

Question 17

Which are the two Bronsted-Lowry bases in the following equation? NH3 + H2O   NH2 -1  + H3O +1

Accepted Answer

A) H2O and NH2 -1 
B) NH3 and H2O 
C) H3O +1 and NH3 
D) NH2 -1 and H3O +1 
A) H2O and NH2 -1 
B) NH3 and H2O 
C) H3O +1 and NH3 
D) NH2 -1 and H3O +1

Question 18

What is the concentration of a HNO3 solution if 10.0 mL of the solution is neutralized by 3.6 mL of a 0.20 M NaOH solution?

Accepted Answer

A) 0.072 M 
B) 53.6 M 
C) 0.56 M 
D) 5.6 M 
A) 0.072 M 
B) 53.6 M 
C) 0.56 M 
D) 5.6 M

Question 19

The net ionic equation for the neutralization of nitric acid by potassium hydroxide is   .

Accepted Answer

A) True 
 B)False

Question 20

In the following reaction,   the compound CH3NH2 behaves as:

Accepted Answer

A) an acid. 
B) a base. 
C) a salt. 
D) a conjugate acid. 
A) an acid. 
B) a base. 
C) a salt. 
D) a conjugate acid.

Which is a strong acid?

A 0.1 M HNO₃ solution and a 0.1 M HNO₂ solution have the same pH.

In the following reaction, water behaves as:

A solution is prepared by adding 35.5 mL of ethylene glycol,C₂H₆O₂,to 250.0 g of water.What is the freezing point of this solution? The K_f for water is 1.86°C/m and the density of ethylene glycol is 1.1135 g/mL.Consider if the solute is an electrolyte or a nonelectrolyte.

What is the concentration of an HCl solution if 25.0 mL of the solution is neutralizedcompletely by 40.0 mL of a 0.30 M KOH solution?

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

What mass of sodium chloride should be added to 500.0 g of water in order to decrease its freezing point to -1.0 °C? The K_f for water is 1.86°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

Which is a strong electrolyte?

What is the conjugate base of NH₃?

Which pH is most alkaline?

At 25^°C the concentration of H⁺¹ in pure water is 1 10^-7 M.

Which are the two Bronsted-Lowry bases in the following equation? HNO₂ + H₂O H₃O⁺¹ + NO₂^-1

Combining potassium hydroxide and sulfuric acid will produce water and

Which pH is most acidic?

What is the conjugate acid of OH^-1?

What is the concentration of chloride ion in a 2.0 M solution of calcium chloride?

Which are the two Bronsted-Lowry bases in the following equation? NH₃ + H₂O NH₂^-1 + H₃O⁺¹

What is the concentration of a HNO₃ solution if 10.0 mL of the solution is neutralized by 3.6 mL of a 0.20 M NaOH solution?

The net ionic equation for the neutralization of nitric acid by potassium hydroxide is .

In the following reaction, the compound CH₃NH₂ behaves as:

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Exam 15: Acids, Bases, and Salts

Which is a strong acid?

A 0.1 M HNO3 solution and a 0.1 M HNO2 solution have the same pH.

In the following reaction, water behaves as:

A solution is prepared by adding 35.5 mL of ethylene glycol,C2H6O2,to 250.0 g of water.What is the freezing point of this solution? The Kf for water is 1.86°C/m and the density of ethylene glycol is 1.1135 g/mL.Consider if the solute is an electrolyte or a nonelectrolyte.

What is the concentration of an HCl solution if 25.0 mL of the solution is neutralizedcompletely by 40.0 mL of a 0.30 M KOH solution?

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

What mass of sodium chloride should be added to 500.0 g of water in order to decrease its freezing point to -1.0 °C? The Kf for water is 1.86°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

Which is a strong electrolyte?

What is the conjugate base of NH3?

Which pH is most alkaline?

At 25 °C the concentration of H +1 in pure water is 1 10 -7 M.

Which are the two Bronsted-Lowry bases in the following equation? HNO2 + H2O H3O +1 + NO2 -1

Combining potassium hydroxide and sulfuric acid will produce water and

Which pH is most acidic?

What is the conjugate acid of OH -1?

What is the concentration of chloride ion in a 2.0 M solution of calcium chloride?

Which are the two Bronsted-Lowry bases in the following equation? NH3 + H2O NH2 -1 + H3O +1

What is the concentration of a HNO3 solution if 10.0 mL of the solution is neutralized by 3.6 mL of a 0.20 M NaOH solution?

The net ionic equation for the neutralization of nitric acid by potassium hydroxide is .

In the following reaction, the compound CH3NH2 behaves as:

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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A 0.1 M HNO₃ solution and a 0.1 M HNO₂ solution have the same pH.

A solution is prepared by adding 35.5 mL of ethylene glycol,C₂H₆O₂,to 250.0 g of water.What is the freezing point of this solution? The K_f for water is 1.86°C/m and the density of ethylene glycol is 1.1135 g/mL.Consider if the solute is an electrolyte or a nonelectrolyte.

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

What mass of sodium chloride should be added to 500.0 g of water in order to decrease its freezing point to -1.0 °C? The K_f for water is 1.86°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

What is the conjugate base of NH₃?

At 25^°C the concentration of H⁺¹ in pure water is 1 10^-7 M.

Which are the two Bronsted-Lowry bases in the following equation? HNO₂ + H₂O H₃O⁺¹ + NO₂^-1

What is the conjugate acid of OH^-1?

Which are the two Bronsted-Lowry bases in the following equation? NH₃ + H₂O NH₂^-1 + H₃O⁺¹

What is the concentration of a HNO₃ solution if 10.0 mL of the solution is neutralized by 3.6 mL of a 0.20 M NaOH solution?

In the following reaction, the compound CH₃NH₂ behaves as: