Question 1

Which sets of curved arrows accounts for the protonation of propene with HI?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and B)
F) A) and C)

Question 2

Use curved arrows to show the movement of pairs of electrons in the following reaction between a Lewis acid and a Lewis base, and show the structure of the product.

Accepted Answer

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

Question 3

Which of the following compounds has the highest pKa?

Accepted Answer

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

Question 4

The following is generic depiction of a reaction using the curve arrow formalism.  In this reaction electrons move from C to B and A will have a positive charge in the product.

Accepted Answer

A) True 
 B)False

Question 5

Why are phenols more acidic than alcohols?

Accepted Answer

Phenols are more acidic than a...

Question 6

Which of the following is present in the highest concentration upon dissolution of acetic acid in water?

Accepted Answer

A)   OH−
B)   H3O+
C)   CH3COOH
D)   CH3COOH+E) None of the above
F) B) and D)

Question 7

Which atom in the following structure is preferentially protonated by a strong acid?

Accepted Answer

A)   i
B)   ii
C)   iii
D)   ivE) None of the above
F) A) and C)

Question 8

Match the types of reactions with the most appropriate relationships.
-ΔHproduct > ΔHreactant

Accepted Answer

A)  Exergonic Reaction
B)  Endergonic Reaction
C)  Exothermic Reaction
D)  Endothermic ReactionE) B) and D)
F) None of the above

Question 9

Provide the equation that relates the equilibrium constant, Keq, to the acid dissociation constant, Ka, for the following equilibrium. $\mathrm{HA}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{A}^{-}+\mathrm{H}_{3} \mathrm{O}^{+}$

Accepted Answer

Question 10

Which of the following is the strongest acid?

Accepted Answer

A)   HCl
B)   HI
C)   HF
D)   HBrE) C) and D)
F) A) and C)

Question 11

Which of the following is the correct order of decreasing basicity (stronger base > weaker base) ?

Accepted Answer

A)   NH3 > MeNH2 > H2O > HF
B)   MeNH2 > NH3 > MeOH > CH4
C)   NH3 > Me3N > H2O > MeOH
D)   CH3COONa > NaOH > NaOMe > NaNMe2E) C) and D)
F) A) and B)

Question 12

Which of the following is a Lewis acid but not a Brønsted-Lowry acid?

Accepted Answer

A)   CH3COOH
B)   AlCl3
C)   H2O
D)   CH3OHE) C) and D)
F) B) and D)

Question 13

Use curved arrows to show the movement of pairs of electrons in the following reaction between a Lewis acid and a Lewis base, and show the structure of the product.

Accepted Answer

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

Question 14

Which of the following equations is correct?

Accepted Answer

A)   ΔG° = ΔH° − TΔS°
B)   ΔH° = ΔG° − TΔS°
C)   ΔG° = ΔH° − ΔS°
D)   ΔG° = ΔH° − ΔS°/TE) All of the above
F) A) and B)

Exam 4: Acids and Bases

Which of the following is the strongest acid?

Correct Answer
verified

Why are phenols more acidic than alcohols?

Correct Answer
verified
Phenols are more acidic than a...
View Answer

Use curved arrows to show the movement of pairs of electrons in the following reaction between a Lewis acid and a Lewis base, and show the structure of the product.

Correct Answer
verified

Which atom in the following structure is preferentially protonated by a strong acid?

Correct Answer
verified

Which of the following is a Lewis acid but not a Brønsted-Lowry acid?

Correct Answer
verified

Which of the following compounds has the highest pK_a?

Correct Answer
verified

Provide the equation that relates the equilibrium constant, K_eq, to the acid dissociation constant, K_a, for the following equilibrium. $\mathrm{HA}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{A}^{-}+\mathrm{H}_{3} \mathrm{O}^{+}$

Correct Answer
verified

Match the types of reactions with the most appropriate relationships. -ΔH_product > ΔH_reactant

Correct Answer
verified

Which of the following is the correct order of decreasing basicity (stronger base > weaker base) ?

Correct Answer
verified

Which of the following is present in the highest concentration upon dissolution of acetic acid in water?

Correct Answer
verified

Which of the following equations is correct?

Correct Answer
verified

Use curved arrows to show the movement of pairs of electrons in the following reaction between a Lewis acid and a Lewis base, and show the structure of the product.

Correct Answer
verified

Which sets of curved arrows accounts for the protonation of propene with HI?

Correct Answer
verified

The following is generic depiction of a reaction using the curve arrow formalism. In this reaction electrons move from C to B and A will have a positive charge in the product.

Correct Answer
verified

Exam 4: Acids and Bases

Which of the following is the strongest acid?

Correct AnswerverifiedShow Answer

Why are phenols more acidic than alcohols?

Correct AnswerverifiedPhenols are more acidic than a...View AnswerShow Answer

Use curved arrows to show the movement of pairs of electrons in the following reaction between a Lewis acid and a Lewis base, and show the structure of the product.

Correct AnswerverifiedShow Answer

Which atom in the following structure is preferentially protonated by a strong acid?

Correct AnswerverifiedShow Answer

Which of the following is a Lewis acid but not a Brønsted-Lowry acid?

Correct AnswerverifiedShow Answer

Which of the following compounds has the highest pKa?

Correct AnswerverifiedShow Answer

Provide the equation that relates the equilibrium constant, Keq, to the acid dissociation constant, Ka, for the following equilibrium. HA+H2O⇌A−+H3O+\mathrm{HA}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{A}^{-}+\mathrm{H}_{3} \mathrm{O}^{+}HA+H2​O⇌A−+H3​O+

Correct AnswerverifiedShow Answer

Match the types of reactions with the most appropriate relationships. -ΔHproduct > ΔHreactant

Correct AnswerverifiedShow Answer

Which of the following is the correct order of decreasing basicity (stronger base > weaker base) ?

Correct AnswerverifiedShow Answer

Which of the following is present in the highest concentration upon dissolution of acetic acid in water?

Correct AnswerverifiedShow Answer

Which of the following equations is correct?

Correct AnswerverifiedShow Answer

Use curved arrows to show the movement of pairs of electrons in the following reaction between a Lewis acid and a Lewis base, and show the structure of the product.

Correct AnswerverifiedShow Answer

Which sets of curved arrows accounts for the protonation of propene with HI?

Correct AnswerverifiedShow Answer

The following is generic depiction of a reaction using the curve arrow formalism. In this reaction electrons move from C to B and A will have a positive charge in the product.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
Phenols are more acidic than a...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Which of the following compounds has the highest pK_a?

Correct Answer
verified

Provide the equation that relates the equilibrium constant, K_eq, to the acid dissociation constant, K_a, for the following equilibrium. $\mathrm{HA}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons \mathrm{A}^{-}+\mathrm{H}_{3} \mathrm{O}^{+}$

Correct Answer
verified

Match the types of reactions with the most appropriate relationships. -ΔH_product > ΔH_reactant

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified