Question 1

Adding sodium hydride,NaH,to water produces:

Accepted Answer

A) H2 and NaOH(aq) 
B) H-(aq)+ Na+(aq) 
C) H3O+(aq)+ Na+(aq) 
D) H3O-(aq)+ Na+(aq) 
E) Na2O + H2 
A) H2 and NaOH(aq) 
B) H-(aq)+ Na+(aq) 
C) H3O+(aq)+ Na+(aq) 
D) H3O-(aq)+ Na+(aq) 
E) Na2O + H2

Question 2

Which combination of reagents is effective in generating sodium propynide,CH3C≡CNa?

Accepted Answer

A) CH3C≡CH + NaH 
B) CH3C≡CH + (CH3)2CHONa 
C) CH3C≡CH + C2H5Na 
D) Two of these choices. 
E) All of these choices. 
A) CH3C≡CH + NaH 
B) CH3C≡CH + (CH3)2CHONa 
C) CH3C≡CH + C2H5Na 
D) Two of these choices. 
E) All of these choices.

Question 3

What is the major product for the following reaction?

Accepted Answer

A)    
B)    
C)    
D) LiD2O 
E) No Reaction 
A)    
B)    
C)    
D) LiD2O 
E) No Reaction

Question 4

Which combination of reagents is the least effective in generating sodium ethoxide,CH3CH2ONa?

Accepted Answer

A) CH3CH2OH + NaH 
B) CH3CH2OH + NaNH2 
C) CH3CH2OH + NaOH 
D) CH3CH2OH + CH3Na 
E) CH3CH2OH + HC$\equiv$CNa 
A) CH3CH2OH + NaH 
B) CH3CH2OH + NaNH2 
C) CH3CH2OH + NaOH 
D) CH3CH2OH + CH3Na 
E) CH3CH2OH + HC$\equiv$CNa

Question 5

What is/are the product(s)of the following acid-base mechanism?

Accepted Answer

A)    
B)    
C)    
D)    
E) None of these choices. 
A)    
B)    
C)    
D)    
E) None of these choices.

Question 6

A substance that can donate a lone pair of electrons is a ___ according to ___ theory.

Accepted Answer

The answer of A substance that can donate a lone...

Question 7

Hydrogen atom(s)from which position(s)is (are)most likely to be abstracted when the following substance is treated with NaH?

Accepted Answer

A) 1 
B) 1,5,6 
C) 1,2 
D) 3,4,7,8,9,10 
E) Hydrogens from all of the positions are equally likely to be abstracted by NaH. 
A) 1 
B) 1,5,6 
C) 1,2 
D) 3,4,7,8,9,10 
E) Hydrogens from all of the positions are equally likely to be abstracted by NaH.

Question 8

Which is the weakest acid?

Accepted Answer

A) CH3CH2CH2CH2CHFCO2H 
B) CH3CHCH2CH2CH2CH2OH 
C) CH3CH2CH2CH2CH2SO3H 
D) CH3CH2CH2CH2CH=CH2 
E) CH3CH2CH2CH2NH2 
A) CH3CH2CH2CH2CHFCO2H 
B) CH3CHCH2CH2CH2CH2OH 
C) CH3CH2CH2CH2CH2SO3H 
D) CH3CH2CH2CH2CH=CH2 
E) CH3CH2CH2CH2NH2

Question 9

For the following acid-base reaction,which statement is true taking $\Delta$S into consideration?

Accepted Answer

A) The reaction is an exothermic reaction and $\Delta$S is positive. 
B) The reaction is an exothermic reaction and $\Delta$S is approximately zero. 
C) The reaction is an endothermic reaction and $\Delta$S is positive. 
D) The reaction is an endothermic reaction and $\Delta$S is approximately zero. 
E) None of these choices. 
A) The reaction is an exothermic reaction and $\Delta$S is positive. 
B) The reaction is an exothermic reaction and $\Delta$S is approximately zero. 
C) The reaction is an endothermic reaction and $\Delta$S is positive. 
D) The reaction is an endothermic reaction and $\Delta$S is approximately zero. 
E) None of these choices.

Question 10

Define a protic solvent.

Accepted Answer

one that has a hydro

Question 11

What compounds are produced when sodium nitrate is added to a mixture of water and ethanol?

Accepted Answer

A) HNO3 + NaOH 
B) HNO3 + CH3CH2ONa 
C) NaOH + CH3CH2ONa 
D) CH3CH2OCH2CH3 + NaOH 
E) No reaction occurs 
A) HNO3 + NaOH 
B) HNO3 + CH3CH2ONa 
C) NaOH + CH3CH2ONa 
D) CH3CH2OCH2CH3 + NaOH 
E) No reaction occurs

Question 12

What does the reaction between the following two species produce?

Accepted Answer

A)    
B)    
C)    
D)    
E) No reaction 
A)    
B)    
C)    
D)    
E) No reaction

Question 13

Which of the following is a Lewis acid?

Accepted Answer

A) H3O+ 
B) BF3 
C) NF3 
D) OH- 
E) More than one of these choices. 
A) H3O+ 
B) BF3 
C) NF3 
D) OH- 
E) More than one of these choices.

Question 14

Which of these bases is the strongest one which can be used (and retains its basic character)in aqueous solution?

Accepted Answer

A) OCH3- 
B) F- 
C) OH- 
D) C2H3O2- 
E) HSO4- 
A) OCH3- 
B) F- 
C) OH- 
D) C2H3O2- 
E) HSO4-

Question 15

The acidity constant,Ka,differs from the equilibrium constant,Keq,for the dissociation of the same acid in water at the same temperature and concentration in what way?

Accepted Answer

A) Ka can be determined experimentally with less accuracy than Keq. 
B) The two terms are identical numerically. 
C) Ka is used for strong acids only; Keq for weak acids. 
D) Ka is the reciprocal of Keq. 
E) Keq = Ka/[H2O]. 
A) Ka can be determined experimentally with less accuracy than Keq. 
B) The two terms are identical numerically. 
C) Ka is used for strong acids only; Keq for weak acids. 
D) Ka is the reciprocal of Keq. 
E) Keq = Ka/[H2O].

Question 16

Select the strongest base.

Accepted Answer

A) OH- 
B) RC$\equiv$C- 
C) NH2- 
D) CH2=CH- 
E) CH3CH2- 
A) OH- 
B) RC$\equiv$C- 
C) NH2- 
D) CH2=CH- 
E) CH3CH2-

Question 17

The reaction between which combination of substances below cannot be classified as a Bronsted-Lowry acid-base reaction?

Accepted Answer

A) CH3Li + C2H5OH 
B) H2SO4 + CH3CO2Na 
C) BF3 + NH3 
D) H3O+ + CH3NH- 
E) two of these choices 
A) CH3Li + C2H5OH 
B) H2SO4 + CH3CO2Na 
C) BF3 + NH3 
D) H3O+ + CH3NH- 
E) two of these choices

Question 18

Which of these is not a Lewis acid?

Accepted Answer

A) AlBr3 
B) BCl3 
C) Ph3P 
D) D+ 
E) All these choices are Lewis acids 
A) AlBr3 
B) BCl3 
C) Ph3P 
D) D+ 
E) All these choices are Lewis acids

Question 19

Write an equation to show the reaction between ethanol,C2H5OH and methyllithium,CH3Li.Draw all non-bonding electrons and show electron flow with curved arrows.

Accepted Answer

Question 20

For the following acid/base reaction which statement is true taking $\Delta$S into consideration?

Accepted Answer

A) The reaction is an exothermic reaction and $\Delta$S is approximately zero. 
B) The reaction is an endothermic reaction and $\Delta$S is negative. 
C) The reaction is an exothermic reaction and $\Delta$S is negative. 
D) The reaction is an exothermic reaction and $\Delta$S is positive. 
E) None of these choices. 
A) The reaction is an exothermic reaction and $\Delta$S is approximately zero. 
B) The reaction is an endothermic reaction and $\Delta$S is negative. 
C) The reaction is an exothermic reaction and $\Delta$S is negative. 
D) The reaction is an exothermic reaction and $\Delta$S is positive. 
E) None of these choices.

Exam 3: Acids and Bases

Adding sodium hydride,NaH,to water produces:

Which combination of reagents is effective in generating sodium propynide,CH3C≡CNa?

What is the major product for the following reaction?

Which combination of reagents is the least effective in generating sodium ethoxide,CH3CH2ONa?

What is/are the product(s)of the following acid-base mechanism?

A substance that can donate a lone pair of electrons is a ___ according to ___ theory.

Hydrogen atom(s)from which position(s)is (are)most likely to be abstracted when the following substance is treated with NaH?

Which is the weakest acid?

For the following acid-base reaction,which statement is true taking Δ\DeltaΔ S into consideration?

Define a protic solvent.

What compounds are produced when sodium nitrate is added to a mixture of water and ethanol?

What does the reaction between the following two species produce?

Which of the following is a Lewis acid?

Which of these bases is the strongest one which can be used (and retains its basic character)in aqueous solution?

The acidity constant,Ka,differs from the equilibrium constant,Keq,for the dissociation of the same acid in water at the same temperature and concentration in what way?

Select the strongest base.

The reaction between which combination of substances below cannot be classified as a Bronsted-Lowry acid-base reaction?

Which of these is not a Lewis acid?

Write an equation to show the reaction between ethanol,C2H5OH and methyllithium,CH3Li.Draw all non-bonding electrons and show electron flow with curved arrows.

For the following acid/base reaction which statement is true taking Δ\DeltaΔ S into consideration?

The Basics

Families of Carbon

Nomenclature and Conformations of Alkanes and Cycloalkanes

Stereochemistry

Nucleophilic Reactions

Alkenes and Alkynes I

Alkenes and Alkynes II

Nuclear Magnetic Resonance and Mass Spectrometry

Radical Reactions

Alcohols and Ethers

Alcohols From Carbonyl Compounds

Conjugated Unsaturated Systems

Aromatic Compounds

Reactions of Aromatic Compounds

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Reactions at the Α Carbon of Carbonyl Compounds

Condensation and Conjugate Addition Reactions of Carbonyl Compounds

Amines

Transition Metal Complexes

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids and Protein Synthesis

Filters

Which combination of reagents is effective in generating sodium propynide,CH₃C≡CNa?

Which combination of reagents is the least effective in generating sodium ethoxide,CH₃CH₂ONa?

A substance that can donate a lone pair of electrons is a _ according to _ theory.

For the following acid-base reaction,which statement is true taking $\Delta$ S into consideration? $For the following acid-base reaction,which statement is true taking \Delta S into consideration?$ $For the following acid-base reaction,which statement is true taking \Delta S into consideration?$

The acidity constant,K_a,differs from the equilibrium constant,K_eq,for the dissociation of the same acid in water at the same temperature and concentration in what way?

Write an equation to show the reaction between ethanol,C₂H₅OH and methyllithium,CH₃Li.Draw all non-bonding electrons and show electron flow with curved arrows.

For the following acid/base reaction which statement is true taking $\Delta$ S into consideration? $For the following acid/base reaction which statement is true taking \Delta S into consideration?$