Question 1

A species that lies at an energy maximum during an individual step in a reaction is termed ____________________.

Accepted Answer

The answer of A species that lies at an energy...

Question 2

Indole is pleasant smelling in highly dilute solutions and has been used in perfumery.  Indole can be classified as a Brønsted-Lowry base but not as a Lewis base..

Accepted Answer

A) True 
 B)False

Question 3

In the following list, there are four Lewis acids, CH3OH, HCl, BCl3 and FeBr3.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following compounds has the lowest pKa?

Accepted Answer

A)  H2O
B)  H2S
C)  H2Se
D)  H2TeE) A) and B)
F) None of the above

Question 5

Which of the following is the strongest acid?

Accepted Answer

A)  CH3OH
B)  CH3CHO
C)  CH3COCH3
D)  CH3COOHE) None of the above
F) C) and D)

Question 6

Which of the following compounds is the strongest acid?

Accepted Answer

A)  CH3COOH
B)  FCH2COOH
C)  ClCH2COOH
D)  BrCH2COOHE) None of the above
F) A) and B)

Question 7

Which acid has the strongest conjugate base?

Accepted Answer

The answer of Which acid has the strongest conjugate base?...

Question 8

Under which of the following conditions will a reaction be spontaneous when  Δ\DeltaΔ H ∘\circ∘  > 0?

Accepted Answer

A)  "T Δ\DeltaΔ S ∘\circ∘  = 0"
B)  "T Δ\DeltaΔ S ∘\circ∘  >  Δ\DeltaΔ H ∘\circ∘ "
C)  "T Δ\DeltaΔ S ∘\circ∘   ∘\circ∘ "
D)  " Δ\DeltaΔ G ∘\circ∘ = 0" E) B) and C)
F) A) and C)

Question 9

What is the approximate pKa value of acetic acid?

Accepted Answer

A)  -7
B)  5
C)  16
D)  51E) B) and D)
F) All of the above

Question 10

What is the approximate pKa value of HCl?

Accepted Answer

A)  -7
B)  5
C)  16
D)  51E) B) and C)
F) C) and D)

Question 11

Which acid will be almost completely deprotonated by NaOH?

Accepted Answer

The answer of Which acid will be almost completely deprotonated...

Question 12

Which of the following compounds is the strongest acid?

Accepted Answer

A)  CH4
B)  CH3CH3
C)  H2C=CH2
D)  HC ≡\equiv≡ CH E) A) and B)
F) All of the above

Question 13

Which of the following is easiest to deprotonate?

Accepted Answer

A)  CH4
B)  CH3CH3
C)  CH2=CH2
D)  HC ≡\equiv≡ CH E) None of the above
F) C) and D)

Question 14

Complete the equation below for the protonation of 2-butene with HBr. Show the movement of pairs of electrons with curved arrows and provide the structures of the conjugate acid and conjugate base.

Accepted Answer

The answer of Complete the equation below for the protonation...

Question 15

Which of the following compounds has the lowest pKa?

Accepted Answer

A)  H2O
B)  HBr
C)  NH3
D)  CH4E) All of the above
F) A) and B)

Question 16

Provide the equation that relates the equilibrium constant, Keq, to the acid dissociation constant, Ka, for the following equilibrium.

Accepted Answer

Question 17

Use curved arrows to show the movement of pairs of electrons in the following acid-base reaction and show the structures of the conjugate acid and conjugate base.

Accepted Answer

The answer of Use curved arrows to show the movement...

Question 18

Which of the following is the strongest acid?

Accepted Answer

A)  CH3CH3
B)  CH3NH2
C)  CH3OH
D)  CH3FE) All of the above
F) A) and C)

Question 19

Which of the following compounds has the highest pKa?

Accepted Answer

A)  SiH4
B)  H2S
C)  PH3
D)  HClE) A) and B)
F) None of the above

Question 20

What is the value of the equilibrium constant, Keq, for the following reaction? eq, for the following reaction?   A)  1013  B)  10-13  C)  13  D)  1/13 " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  "1013"
B)  "10-13"
C)  "13"
D)  "1/13"E) B) and C)
F) A) and D)

Exam 4: Acids and Bases

Which of the following compounds has the lowest pKa?

Correct AnswerverifiedShow Answer

Which of the following compounds is the strongest acid?

Correct AnswerverifiedShow Answer

Which of the following is easiest to deprotonate?

Correct AnswerverifiedShow Answer

Which of the following compounds has the lowest pKa?

Correct AnswerverifiedShow Answer

Which of the following compounds has the highest pKa?

Correct AnswerverifiedShow Answer

Which of the following is the strongest acid?

Correct AnswerverifiedShow Answer

A species that lies at an energy maximum during an individual step in a reaction is termed ____________________.

Correct AnswerverifiedShow Answer

Under which of the following conditions will a reaction be spontaneous when Δ\DeltaΔ H ∘\circ∘ > 0?

Correct AnswerverifiedShow Answer

Complete the equation below for the protonation of 2-butene with HBr. Show the movement of pairs of electrons with curved arrows and provide the structures of the conjugate acid and conjugate base.

Correct AnswerverifiedShow Answer

Use curved arrows to show the movement of pairs of electrons in the following acid-base reaction and show the structures of the conjugate acid and conjugate base.

Correct AnswerverifiedShow Answer

What is the approximate pKa value of acetic acid?

Correct AnswerverifiedShow Answer

Indole is pleasant smelling in highly dilute solutions and has been used in perfumery. Indole can be classified as a Brønsted-Lowry base but not as a Lewis base..

Correct AnswerverifiedShow Answer

Which acid has the strongest conjugate base?

Correct AnswerverifiedShow Answer

What is the approximate pKa value of HCl?

Correct AnswerverifiedShow Answer

What is the value of the equilibrium constant, Keq, for the following reaction?

Correct AnswerverifiedShow Answer

Which of the following is the strongest acid?

Correct AnswerverifiedShow Answer

Provide the equation that relates the equilibrium constant, Keq, to the acid dissociation constant, Ka, for the following equilibrium.

Correct AnswerverifiedShow Answer

In the following list, there are four Lewis acids, CH3OH, HCl, BCl3 and FeBr3.

Correct AnswerverifiedShow Answer

Which acid will be almost completely deprotonated by NaOH?

Correct AnswerverifiedShow Answer

Which of the following compounds is the strongest acid?

Correct AnswerverifiedShow Answer

Which of the following compounds has the lowest pK_a?

Correct Answer
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Which of the following compounds has the lowest pK_a?

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Which of the following compounds has the highest pK_a?

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Under which of the following conditions will a reaction be spontaneous when $\Delta$ H^$\circ$ > 0?

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What is the approximate pK_a value of acetic acid?

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What is the approximate pK_a value of HCl?

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What is the value of the equilibrium constant, K_eq, for the following reaction?

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Provide the equation that relates the equilibrium constant, K_eq, to the acid dissociation constant, K_a, for the following equilibrium.

Correct Answer
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In the following list, there are four Lewis acids, CH₃OH, HCl, BCl₃ and FeBr₃.

Correct Answer
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