Question 1

Which of the following bases is a strong base?

Accepted Answer

A)  LiOH 
B)    
C)  NH2CH2COOH 
D)  NH2CH2CH2CH2NH2 
E)  All of the above molecules are strong bases. 
A)  LiOH 
B)    
C)  NH2CH2COOH 
D)  NH2CH2CH2CH2NH2 
E)  All of the above molecules are strong bases.

Question 2

Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution. The last step in the manufacture of lidocaine is a neutralization reaction. Which of the following reactions is the neutralization of lidocaine?

Accepted Answer

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

Question 3

Arsenic poisoning is a serious problem in many parts of the world. When arsenic poisoning occurs, arsenic binds to proteins and eventually causes cellular damage. This leads to a variety of symptoms in humans including exhaustion, muscle weakness, organ failure, and cancer. Arsenic poisoning is commonly treated with a drug called dimercaprol (or BAL) that binds arsenic, which sets up a competing equilibrium within the body. Once arsenic reacts to form a complex with BAL, it can be excreted from the body. Arsenic-protein complex   Arsenic + proteins + BAL   Arsenic-BAL complex
How does treatment with BAL affect the equilibrium shown above?

Accepted Answer

A)  Adding BAL does not affect the equilibrium. 
B)  Adding BAL pushes the reaction to the left. 
C)  Adding BAL pushes the reaction to the right. 
D)  Adding BAL causes less arsenic-BAL to be made. 
E)  Adding BAL causes more arsenic-protein complex to be made. 
A)  Adding BAL does not affect the equilibrium. 
B)  Adding BAL pushes the reaction to the left. 
C)  Adding BAL pushes the reaction to the right. 
D)  Adding BAL causes less arsenic-BAL to be made. 
E)  Adding BAL causes more arsenic-protein complex to be made.

Question 4

What is the pH of a solution with a [F1F1F1S1F1F1F10OH ] of 4.1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F103 M?

Accepted Answer

A)  "F1F1F1S1F1F1F102.39" 
B)  "2.39" 
C)  "11.6" 
D)  "F1F1F1S1F1F1F1011.6" 
E)  "7.00" 
A)  "F1F1F1S1F1F1F102.39" 
B)  "2.39" 
C)  "11.6" 
D)  "F1F1F1S1F1F1F1011.6" 
E)  "7.00"

Question 5

Which of the following pH ranges is referred to as physiological pH?

Accepted Answer

A)  pH 6 - pH 8 
B)  pH 7.35 - pH 7.45 
C)  pH 6.7 - pH 6.8 
D)  pH 6.5 - pH 7.5 
E)  pH 5 - pH 8 
A)  pH 6 - pH 8 
B)  pH 7.35 - pH 7.45 
C)  pH 6.7 - pH 6.8 
D)  pH 6.5 - pH 7.5 
E)  pH 5 - pH 8

Question 6

Which of the following are conjugate acid-base pairs in the acid-base reaction between dopamine and water?   I. H2O and   II. H2O and -OH III.   and   IV.   and -OH

Accepted Answer

A)  I only 
B)  I and IV 
C)  II only 
D)  II and IV 
E)  II and III 
A)  I only 
B)  I and IV 
C)  II only 
D)  II and IV 
E)  II and III

Question 7

What is the [OHF1F1F1S1F1F1F10] in a solution that has a [H3O+] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F106 M?

Accepted Answer

A)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1020 M 
B)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F108 M 
C)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F106 M 
D)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F107 M 
E)  1 F1F1F1S1F1F1F10 107 M 
A)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1020 M 
B)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F108 M 
C)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F106 M 
D)  1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F107 M 
E)  1 F1F1F1S1F1F1F10 107 M

Question 8

Ethylene glycol and propylene glycol are both

Accepted Answer

A)  hydrocarbons. 
B)  carboxylic acids. 
C)  diols. 
D)  ethers. 
E)  toxic organic acids. 
A)  hydrocarbons. 
B)  carboxylic acids. 
C)  diols. 
D)  ethers. 
E)  toxic organic acids.

Question 9

Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a strong base?

Accepted Answer

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

Question 10

Which of the following buffer systems is the primary buffering system in the blood?

Accepted Answer

A)  Proteins 
B)  DNA and RNA 
C)  H2PO4F1F1F1S1F1F1F10/HPO42F1F1F1S1F1F1F10 
D)  H2CO3/HCO3F1F1F1S1F1F1F10 
E)  CH3COOH/CH3COOF1F1F1S1F1F1F10 
A)  Proteins 
B)  DNA and RNA 
C)  H2PO4F1F1F1S1F1F1F10/HPO42F1F1F1S1F1F1F10 
D)  H2CO3/HCO3F1F1F1S1F1F1F10 
E)  CH3COOH/CH3COOF1F1F1S1F1F1F10

Question 11

What is an enteric coating?

Accepted Answer

A)  It is the acidic coating of the small intestine that causes degradation of drugs. 
B)  It is the basic coating of the small intestine that causes degradation of drugs. 
C)  It is an coating that protects orally administered drugs from degradation in the stomach. 
D)  It is a drug coating used to make medication more palatable. 
E)  It is a coating that protects orally administered drugs from degradation in the small intestine. 
A)  It is the acidic coating of the small intestine that causes degradation of drugs. 
B)  It is the basic coating of the small intestine that causes degradation of drugs. 
C)  It is an coating that protects orally administered drugs from degradation in the stomach. 
D)  It is a drug coating used to make medication more palatable. 
E)  It is a coating that protects orally administered drugs from degradation in the small intestine.

Question 12

Which of the following solutions has the highest concentration of [F1F1F1S1F1F1F10OH]?

Accepted Answer

A)  a solution with a [H3O+] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F105 M 
B)  a solution with a [H3O+] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1013 M 
C)  a solution with a [HOF1F1F1S1F1F1F10] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F105 M 
D)  a solution with a [HOF1F1F1S1F1F1F10] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1013 M 
E)  a solution with a [HOF1F1F1S1F1F1F10] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F102 M 
A)  a solution with a [H3O+] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F105 M 
B)  a solution with a [H3O+] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1013 M 
C)  a solution with a [HOF1F1F1S1F1F1F10] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F105 M 
D)  a solution with a [HOF1F1F1S1F1F1F10] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1013 M 
E)  a solution with a [HOF1F1F1S1F1F1F10] of 1 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F102 M

Question 13

Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak base?

Accepted Answer

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

Question 14

Consider a buffer solution containing CH3COOF1F1F1S1F1F1F10Na+ and CH3COOH. If you add hydronium (H3O+) until all of the CH3COOF1F1F1S1F1F1F10 is converted into CH3COOH and then add a little more hydronium, what do you expect to observe?

Accepted Answer

A)  The pH increases. 
B)  The pH decreases. 
C)  The pH stays the same. 
D)  The solution will be neutralized. 
E)  The pH changes, but it is not possible to determine how it will change. 
A)  The pH increases. 
B)  The pH decreases. 
C)  The pH stays the same. 
D)  The solution will be neutralized. 
E)  The pH changes, but it is not possible to determine how it will change.

Question 15

Adding an acid to pure water will change which of the following values: [H3O+], [HOF1F1F1S1F1F1F10], and/or Kw?

Accepted Answer

A)  [H3O+] only 
B)  [HOF1F1F1S1F1F1F10] only 
C)  Kw only 
D)  [H3O+] and [HOF1F1F1S1F1F1F10], but not Kw 
E)  All of these values will be changed. 
A)  [H3O+] only 
B)  [HOF1F1F1S1F1F1F10] only 
C)  Kw only 
D)  [H3O+] and [HOF1F1F1S1F1F1F10], but not Kw 
E)  All of these values will be changed.

Question 16

The following figure illustrates the action of a HF and FF1F1F1S1F1F1F10 buffer where the sizes of the boxes are proportional to the concentrations of HF and FF1F1F1S1F1F1F10 in solution. If you add hydronium until all of the FF1F1F1S1F1F1F10 is converted into HF and then add a little more hydronium, what is observed?

Accepted Answer

A)  The pH increases. 
B)  The pH decreases. 
C)  The pH stays the same. 
D)  The solution will be neutralized. 
E)  The pH changes, but it is not possible to determine how it will change. 
A)  The pH increases. 
B)  The pH decreases. 
C)  The pH stays the same. 
D)  The solution will be neutralized. 
E)  The pH changes, but it is not possible to determine how it will change.

Question 17

Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution, as shown on the following drug label. What is the purpose of HCl in the injection solution?

Accepted Answer

A)  It makes lidocaine easier to store. 
B)  It makes lidocaine more reactive. 
C)  It makes lidocaine more soluble. 
D)  It is the active ingredient of the medicine. 
E)  It is a preservative. 
A)  It makes lidocaine easier to store. 
B)  It makes lidocaine more reactive. 
C)  It makes lidocaine more soluble. 
D)  It is the active ingredient of the medicine. 
E)  It is a preservative.

Question 18

In the acid-base reaction between ammonia and water, which bond is made in order to make ammonia and water from ammonium and hydroxide?

Accepted Answer

A)  H-H 
B)  N-O 
C)  N-H 
D)  O-H 
E)  All of the above 
A)  H-H 
B)  N-O 
C)  N-H 
D)  O-H 
E)  All of the above

Question 19

The following figure illustrates the action of a HF and FF1F1F1S1F1F1F10 buffer where the sizes of the boxes are proportional to the concentrations of HF and FF1F1F1S1F1F1F10 in solution. What will happen when a small amount of base (F1F1F1S1F1F1F10OH) is added to the HF/FF1F1F1S1F1F1F10 buffer?

Accepted Answer

A)  The concentration of -OH will increase. 
B)  The concentration of H3O+ will increase. 
C)  The concentration of HF will increase. 
D)  The concentration of FF1F1F1S1F1F1F10 will increase. 
E)  The pH of the solution will increase. 
A)  The concentration of -OH will increase. 
B)  The concentration of H3O+ will increase. 
C)  The concentration of HF will increase. 
D)  The concentration of FF1F1F1S1F1F1F10 will increase. 
E)  The pH of the solution will increase.

Question 20

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H2O + NaCl

Accepted Answer

A)  "H3O+" 
B)  "-OH" 
C)  "H2O" 
D)  "NaCl" 
E)  "H+" 
A)  "H3O+" 
B)  "-OH" 
C)  "H2O" 
D)  "NaCl" 
E)  "H+"

Which of the following bases is a strong base?

Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution. The last step in the manufacture of lidocaine is a neutralization reaction. Which of the following reactions is the neutralization of lidocaine?

What is the pH of a solution with a [^OH] of 4.1  10^³ M?

Which of the following pH ranges is referred to as physiological pH?

Which of the following are conjugate acid-base pairs in the acid-base reaction between dopamine and water? I. H₂O and II. H₂O and ^-OH III. and IV. and ^-OH

What is the [OH^] in a solution that has a [H₃O⁺] of 1  10^⁶ M?

Ethylene glycol and propylene glycol are both

Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a strong base?

Which of the following buffer systems is the primary buffering system in the blood?

What is an enteric coating?

Which of the following solutions has the highest concentration of [^OH]?

Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak base?

Consider a buffer solution containing CH₃COO^Na⁺ and CH₃COOH. If you add hydronium (H₃O⁺) until all of the CH₃COO^ is converted into CH₃COOH and then add a little more hydronium, what do you expect to observe?

Adding an acid to pure water will change which of the following values: [H₃O⁺], [HO^], and/or K_w?

The following figure illustrates the action of a HF and F^ buffer where the sizes of the boxes are proportional to the concentrations of HF and F^ in solution. If you add hydronium until all of the F^ is converted into HF and then add a little more hydronium, what is observed?

Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution, as shown on the following drug label. What is the purpose of HCl in the injection solution?

In the acid-base reaction between ammonia and water, which bond is made in order to make ammonia and water from ammonium and hydroxide?

The following figure illustrates the action of a HF and F^ buffer where the sizes of the boxes are proportional to the concentrations of HF and F^ in solution. What will happen when a small amount of base (^OH) is added to the HF/F^ buffer?

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H₂O + NaCl

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Chemical Quantities and Chemical Reactions

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Solutions, Colloids and Membranes

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 9: Acids and Bases

Which of the following bases is a strong base?

Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution. The last step in the manufacture of lidocaine is a neutralization reaction. Which of the following reactions is the neutralization of lidocaine?

What is the pH of a solution with a [OH ] of 4.1  103 M?

Which of the following pH ranges is referred to as physiological pH?

Which of the following are conjugate acid-base pairs in the acid-base reaction between dopamine and water? I. H2O and II. H2O and -OH III. and IV. and -OH

What is the [OH] in a solution that has a [H3O+] of 1  106 M?

Ethylene glycol and propylene glycol are both

Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a strong base?

Which of the following buffer systems is the primary buffering system in the blood?

What is an enteric coating?

Which of the following solutions has the highest concentration of [OH]?

Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak base?

Consider a buffer solution containing CH3COONa+ and CH3COOH. If you add hydronium (H3O+) until all of the CH3COO is converted into CH3COOH and then add a little more hydronium, what do you expect to observe?

Adding an acid to pure water will change which of the following values: [H3O+], [HO], and/or Kw?

The following figure illustrates the action of a HF and F buffer where the sizes of the boxes are proportional to the concentrations of HF and F in solution. If you add hydronium until all of the F is converted into HF and then add a little more hydronium, what is observed?

Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution, as shown on the following drug label. What is the purpose of HCl in the injection solution?

In the acid-base reaction between ammonia and water, which bond is made in order to make ammonia and water from ammonium and hydroxide?

The following figure illustrates the action of a HF and F buffer where the sizes of the boxes are proportional to the concentrations of HF and F in solution. What will happen when a small amount of base (OH) is added to the HF/F buffer?

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H2O + NaCl

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Chemical Quantities and Chemical Reactions

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Solutions, Colloids and Membranes

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

What is the pH of a solution with a [^OH] of 4.1  10^³ M?

Which of the following are conjugate acid-base pairs in the acid-base reaction between dopamine and water? I. H₂O and II. H₂O and ^-OH III. and IV. and ^-OH

What is the [OH^] in a solution that has a [H₃O⁺] of 1  10^⁶ M?

Which of the following solutions has the highest concentration of [^OH]?

Consider a buffer solution containing CH₃COO^Na⁺ and CH₃COOH. If you add hydronium (H₃O⁺) until all of the CH₃COO^ is converted into CH₃COOH and then add a little more hydronium, what do you expect to observe?

Adding an acid to pure water will change which of the following values: [H₃O⁺], [HO^], and/or K_w?

The following figure illustrates the action of a HF and F^ buffer where the sizes of the boxes are proportional to the concentrations of HF and F^ in solution. If you add hydronium until all of the F^ is converted into HF and then add a little more hydronium, what is observed?

The following figure illustrates the action of a HF and F^ buffer where the sizes of the boxes are proportional to the concentrations of HF and F^ in solution. What will happen when a small amount of base (^OH) is added to the HF/F^ buffer?

Which species in the following neutralization reaction are spectator ions? NaOH + HCl → H₂O + NaCl