Question 1

Under what condition is the K for a chemical reaction always constant?

Accepted Answer

A) Constant temperature 
B) Constant pressure 
C) Constant volume 
D) None of the above 
A) Constant temperature 
B) Constant pressure 
C) Constant volume 
D) None of the above

Question 2

What does a value of 1.50 × 104 for an equilibrium constant indicate about the reaction?

Accepted Answer

A) The equilibrium lies far to the reactants side. 
B) The equilibrium is roughly equal amounts of products and reactants. 
C) The equilibrium lies far to the products side. 
D) The number does not indicate anything about the equilibrium. 
A) The equilibrium lies far to the reactants side. 
B) The equilibrium is roughly equal amounts of products and reactants. 
C) The equilibrium lies far to the products side. 
D) The number does not indicate anything about the equilibrium.

Question 3

In the acid equilibrium HA ⇌ H+ + A-, what effect on the equilibrium would the addition of the acid salt, NaA, have?

Accepted Answer

A) It would accelerate the reverse reaction. 
B) It would accelerate the forward reaction. 
C) It would accelerate both the forward and the reverse reactions. 
D) It would have no effect. 
A) It would accelerate the reverse reaction. 
B) It would accelerate the forward reaction. 
C) It would accelerate both the forward and the reverse reactions. 
D) It would have no effect.

Question 4

When hemoglobin has been oxygenated and is carrying oxygen to the tissues, what is the proper name for the molecule?

Accepted Answer

The answer of When hemoglobin has been oxygenated and is...

Question 5

What is the reactant concentration, [HA], in HA ⇌ H+ + A- , when [H+] = 0.010 M and K = 2.05?

Accepted Answer

A) 1.00 × 10-4 
B) 4.87 × 10-5 
C) 4.87 × 10-3 
D) 1.00 × 10-3 
A) 1.00 × 10-4 
B) 4.87 × 10-5 
C) 4.87 × 10-3 
D) 1.00 × 10-3

Question 6

How does epicatechin affect muscle cells?

Accepted Answer

It appears to increa

Question 7

What produces energy in the cells of the body?

Accepted Answer

A) The cell nucleus 
B) The mitochondria 
C) Aerobic respirators 
D) The electrolytes 
A) The cell nucleus 
B) The mitochondria 
C) Aerobic respirators 
D) The electrolytes

Question 8

What does the equilibrium expression look like for the reaction As2S3(s) ⇌ 2As3+(aq) + 3S2-(aq)?

Accepted Answer

A) K = [As3+] [S2-] / [As2S3] 
B) K = [As3+]2 [S2-]3 / [As2S3] 
C) K = [As2S3] / [As3+]2 [S2-]3 
D) K = [As2S3] / [As3+] [S2-] 
A) K = [As3+] [S2-] / [As2S3] 
B) K = [As3+]2 [S2-]3 / [As2S3] 
C) K = [As2S3] / [As3+]2 [S2-]3 
D) K = [As2S3] / [As3+] [S2-]

Question 9

What is the treatment for ethylene glycol poisoning?

Accepted Answer

Administer

Question 10

Why do common compounds, such as sodium chloride, not have an LD50?

Accepted Answer

A) Because they are not poisons 
B) Because such materials are food products 
C) Because it has not yet been determined 
D) None of the above; all compounds, even materials such as sodium chloride, do have an LD50. 
A) Because they are not poisons 
B) Because such materials are food products 
C) Because it has not yet been determined 
D) None of the above; all compounds, even materials such as sodium chloride, do have an LD50.

Question 11

In what form is arsenic used as a poison?

Accepted Answer

A) As3O2 
B) AsO3 
C) AsO2 
D) As2O3 
A) As3O2 
B) AsO3 
C) AsO2 
D) As2O3

Question 12

The equilibrium HA ⇌ H+ + A- shows complete dissociation in any equilibrium.

Accepted Answer

A) True 
 B)False

Question 13

In the following reaction: HCl ⇌ H+ + Cl- , what is the pH value if [HCl] = 0.200 M and K = 1 × 10-9?

Accepted Answer

A) 2.00 
B) 1.50 
C) 4.85 
D) Can't tell from the information provided. 
A) 2.00 
B) 1.50 
C) 4.85 
D) Can't tell from the information provided.

Question 14

When is a system in equilibrium?

Accepted Answer

When the rate of the

Question 15

In the reaction HCl ⇌ H+ + Cl- , when K = 2.1 and [H+] = 0.33 M, what is [HCl]?

Accepted Answer

A) 0.229 M 
B) 0.693 M 
C) 0.052 M 
D) 0.109 M 
A) 0.229 M 
B) 0.693 M 
C) 0.052 M 
D) 0.109 M

Question 16

What is the equilibrium reaction of calcium oxalate?

Accepted Answer

The answer of What is the equilibrium reaction of calcium...

Question 17

What is the proper formula for realgar?

Accepted Answer

A) FeS2 
B) FeAs 
C) FeS 
D) AsS 
A) FeS2 
B) FeAs 
C) FeS 
D) AsS

Question 18

What is the reactant concentration, [HA], in a reaction such as HA ⇌ H+ + A- , when K = 0.21 and [H+] = 0.13 M?

Accepted Answer

A) 0.080 M 
B) 0.020 M 
C) 0.130 M 
D) 0.003 M 
A) 0.080 M 
B) 0.020 M 
C) 0.130 M 
D) 0.003 M

Question 19

What is the [H+] in the following reaction: HA ⇌ H+ + A- , if [HA] = 0.150 M and K = 0.02?

Accepted Answer

A) 0.030 M 
B) 0.054 M 
C) 0.150 M 
D) 0.020 M 
A) 0.030 M 
B) 0.054 M 
C) 0.150 M 
D) 0.020 M

Question 20

What is the value of K in the following: HC2H3O2 ⇌ H+ + C2H3O2-?

Accepted Answer

A) 0.04 
B) 0.10 
C) 0.02 
D) Not enough information to tell 
A) 0.04 
B) 0.10 
C) 0.02 
D) Not enough information to tell

Under what condition is the K for a chemical reaction always constant?

What does a value of 1.50 × 10⁴ for an equilibrium constant indicate about the reaction?

In the acid equilibrium HA ⇌ H⁺ + A^-, what effect on the equilibrium would the addition of the acid salt, NaA, have?

When hemoglobin has been oxygenated and is carrying oxygen to the tissues, what is the proper name for the molecule?

What is the reactant concentration, [HA], in HA ⇌ H⁺ + A^- , when [H⁺] = 0.010 M and K = 2.05?

How does epicatechin affect muscle cells?

What produces energy in the cells of the body?

What does the equilibrium expression look like for the reaction As₂S_3(s) ⇌ 2As³⁺_(aq) + 3S^2-_(aq)?

What is the treatment for ethylene glycol poisoning?

Why do common compounds, such as sodium chloride, not have an LD₅₀?

In what form is arsenic used as a poison?

The equilibrium HA ⇌ H⁺ + A^- shows complete dissociation in any equilibrium.

In the following reaction: HCl ⇌ H⁺ + Cl^- , what is the pH value if [HCl] = 0.200 M and K = 1 × 10^-9?

When is a system in equilibrium?

In the reaction HCl ⇌ H⁺ + Cl^- , when K = 2.1 and [H⁺] = 0.33 M, what is [HCl]?

What is the equilibrium reaction of calcium oxalate?

What is the proper formula for realgar?

What is the reactant concentration, [HA], in a reaction such as HA ⇌ H⁺ + A^- , when K = 0.21 and [H⁺] = 0.13 M?

What is the [H⁺] in the following reaction: HA ⇌ H⁺ + A^- , if [HA] = 0.150 M and K = 0.02?

What is the value of K in the following: HC₂H₃O₂ ⇌ H⁺ + C₂H₃O₂^-?

Understanding Our World With Chemistry

Matter: Properties, Changes and Measurements

Understanding Atoms

Bonding and Reactions

Chemistry of Bonding: Structure and Function of Drug Molecules

Aqueous Solutions: Part I

Aqueous Solutions: Part II

Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Introduction to Biochemistry

Filters

Exam 13: Chemical Equilibrium

Under what condition is the K for a chemical reaction always constant?

What does a value of 1.50 × 104 for an equilibrium constant indicate about the reaction?

In the acid equilibrium HA ⇌ H+ + A-, what effect on the equilibrium would the addition of the acid salt, NaA, have?

When hemoglobin has been oxygenated and is carrying oxygen to the tissues, what is the proper name for the molecule?

What is the reactant concentration, [HA], in HA ⇌ H+ + A- , when [H+] = 0.010 M and K = 2.05?

How does epicatechin affect muscle cells?

What produces energy in the cells of the body?

What does the equilibrium expression look like for the reaction As2S3(s) ⇌ 2As3+(aq) + 3S2-(aq)?

What is the treatment for ethylene glycol poisoning?

Why do common compounds, such as sodium chloride, not have an LD50?

In what form is arsenic used as a poison?

The equilibrium HA ⇌ H+ + A- shows complete dissociation in any equilibrium.

In the following reaction: HCl ⇌ H+ + Cl- , what is the pH value if [HCl] = 0.200 M and K = 1 × 10-9?

When is a system in equilibrium?

In the reaction HCl ⇌ H+ + Cl- , when K = 2.1 and [H+] = 0.33 M, what is [HCl]?

What is the equilibrium reaction of calcium oxalate?

What is the proper formula for realgar?

What is the reactant concentration, [HA], in a reaction such as HA ⇌ H+ + A- , when K = 0.21 and [H+] = 0.13 M?

What is the [H+] in the following reaction: HA ⇌ H+ + A- , if [HA] = 0.150 M and K = 0.02?

What is the value of K in the following: HC2H3O2 ⇌ H+ + C2H3O2-?

Understanding Our World With Chemistry

Matter: Properties, Changes and Measurements

Understanding Atoms

Bonding and Reactions

Chemistry of Bonding: Structure and Function of Drug Molecules

Aqueous Solutions: Part I

Aqueous Solutions: Part II

Organic Chemistry and Polymers

Chemistry of Fire and Heat

Chemistry of Explosions

Applications of Chemical Kinetics

Nuclear Chemistry: Energy, Medicine, Weapons, and Terrorism

Introduction to Biochemistry

Filters

What does a value of 1.50 × 10⁴ for an equilibrium constant indicate about the reaction?

In the acid equilibrium HA ⇌ H⁺ + A^-, what effect on the equilibrium would the addition of the acid salt, NaA, have?

What is the reactant concentration, [HA], in HA ⇌ H⁺ + A^- , when [H⁺] = 0.010 M and K = 2.05?

What does the equilibrium expression look like for the reaction As₂S_3(s) ⇌ 2As³⁺_(aq) + 3S^2-_(aq)?

Why do common compounds, such as sodium chloride, not have an LD₅₀?

The equilibrium HA ⇌ H⁺ + A^- shows complete dissociation in any equilibrium.

In the following reaction: HCl ⇌ H⁺ + Cl^- , what is the pH value if [HCl] = 0.200 M and K = 1 × 10^-9?

In the reaction HCl ⇌ H⁺ + Cl^- , when K = 2.1 and [H⁺] = 0.33 M, what is [HCl]?

What is the reactant concentration, [HA], in a reaction such as HA ⇌ H⁺ + A^- , when K = 0.21 and [H⁺] = 0.13 M?

What is the [H⁺] in the following reaction: HA ⇌ H⁺ + A^- , if [HA] = 0.150 M and K = 0.02?

What is the value of K in the following: HC₂H₃O₂ ⇌ H⁺ + C₂H₃O₂^-?