Question 1

The strongest base that can exist in aqueous solution is ________.

Accepted Answer

The answer of The strongest base that can exist in...

Question 2

In the reaction, HClO3 + N2H4   ClO3- + N2H5+, which two species are bases?

Accepted Answer

A) HClO3, N2H4 
B) HClO3, ClO3- 
C) HClO3, N2H5+ 
D) N2H4, N2H5+ 
E) ClO3-, N2H4 
A) HClO3, N2H4 
B) HClO3, ClO3- 
C) HClO3, N2H5+ 
D) N2H4, N2H5+ 
E) ClO3-, N2H4

Question 3

Given that X is the same atom for each of the following, which is the strongest oxoacid?

Accepted Answer

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

Question 4

Arrange the acids H2Se, H2Te, and H2S in order of increasing acid strength.

Accepted Answer

Question 5

Which 0.1 M solution would be the most acidic?

Accepted Answer

A) Al(NO3)3 (aq) 
B) Ca(NO3)2 (aq) 
C) KNO3 (aq) 
D) Mg(NO3)2 (aq) 
E) Zn(NO3)2 (aq) 
A) Al(NO3)3 (aq) 
B) Ca(NO3)2 (aq) 
C) KNO3 (aq) 
D) Mg(NO3)2 (aq) 
E) Zn(NO3)2 (aq)

Question 6

In the reaction, HClO3 + N2H4   ClO3- + N2H5+, which two species are acids?

Accepted Answer

A) HClO3, N2H4 
B) HClO3, ClO3- 
C) HClO3, N2H5+ 
D) N2H4, N2H5+ 
E) ClO3-, N2H5+ 
A) HClO3, N2H4 
B) HClO3, ClO3- 
C) HClO3, N2H5+ 
D) N2H4, N2H5+ 
E) ClO3-, N2H5+

Question 7

The conjugate base of NH3 is NH4OH(aq).

Accepted Answer

A) True 
 B)False

Question 8

The F- ion can react with BF3, forming the BF4- anion. In this reaction,

Accepted Answer

A) the F- ion is a Brønsted-Lowry base, accepting a proton from the BF3 molecule. 
B) the F- ion is a Lewis base, donating a proton to the BF3 molecule. 
C) the F- ion is a Brønsted-Lowry acid, donating a proton to the BF3 molecule. 
D) the BF3 molecule acts as a Lewis acid, accepting an electron pair from the F- ion to form a coordinate covalent bond. 
E) the BF3 molecule acts as a Lewis base, donating an electron pair to the F- ion to form a coordinate covalent bond. 
A) the F- ion is a Brønsted-Lowry base, accepting a proton from the BF3 molecule. 
B) the F- ion is a Lewis base, donating a proton to the BF3 molecule. 
C) the F- ion is a Brønsted-Lowry acid, donating a proton to the BF3 molecule. 
D) the BF3 molecule acts as a Lewis acid, accepting an electron pair from the F- ion to form a coordinate covalent bond. 
E) the BF3 molecule acts as a Lewis base, donating an electron pair to the F- ion to form a coordinate covalent bond.

Question 9

Which pair of reactants will yield H2SO3 as one of its products?

Accepted Answer

A) SO2 + OH- 
B) SO3 + OH- 
C) SO2 + H2O 
D) SO42- + OH- 
E) SO3 + H2O 
A) SO2 + OH- 
B) SO3 + OH- 
C) SO2 + H2O 
D) SO42- + OH- 
E) SO3 + H2O

Question 10

Given the following substances in order of increasing acid strength,HOCl(aq)2H3O2(aq)2O4-(aq)2(aq)< HCl(aq)Which species listed below is the weakest base of that set?

Accepted Answer

A) C2H3O2-(aq) 
B) OCl-(aq) 
C) HC2O4-(aq) 
D) HNO2(aq) 
E) OCN-(aq) 
A) C2H3O2-(aq) 
B) OCl-(aq) 
C) HC2O4-(aq) 
D) HNO2(aq) 
E) OCN-(aq)

Question 11

In the reaction, H2PO4- + HAsO42-   HPO42- + H2AsO4-, which two species are acids?

Accepted Answer

A) H2PO4-, HAsO42- 
B) H2PO4-, H2AsO4- 
C) H2PO4-, HPO42- 
D) HAsO42-, HPO42- 
E) HPO42-, H2AsO4- 
A) H2PO4-, HAsO42- 
B) H2PO4-, H2AsO4- 
C) H2PO4-, HPO42- 
D) HAsO42-, HPO42- 
E) HPO42-, H2AsO4-

Question 12

The conjugate acid of HPO42- is

Accepted Answer

A) H2PO4. 
B) H3PO4. 
C) PO43-. 
D) PO42-. 
E) H2PO4-. 
A) H2PO4. 
B) H3PO4. 
C) PO43-. 
D) PO42-. 
E) H2PO4-.

Question 13

In the reaction, H2PO4- + HAsO42-    HPO42- + H2AsO4-, which species are a conjugate acid-base pair?

Accepted Answer

A) H2PO4-, HAsO42- 
B) H2PO4-, H2AsO4- 
C) H2PO4-, HPO42- 
D) HAsO42-, HPO42- 
E) HPO42-, H2AsO4- 
A) H2PO4-, HAsO42- 
B) H2PO4-, H2AsO4- 
C) H2PO4-, HPO42- 
D) HAsO42-, HPO42- 
E) HPO42-, H2AsO4-

Question 14

Five solutions were prepared by dissolving 0.00100 mole of each of the following in enough water to make 1.000 liter of solution. Which one of these compounds would make the most acidic solution?

Accepted Answer

A) CO2 
B) P4O6 
C) P4O10 
D) SO2 
E) SO3 
A) CO2 
B) P4O6 
C) P4O10 
D) SO2 
E) SO3

Question 15

Three oxoacids with the formulas shown are listed in order of decreasing acid strength:HZO3 > HYO3 > HXO3What is the formula for the strongest conjugate base of these acids?

Accepted Answer

Question 16

Which one of the two species, H2Se or H3As, is the stronger Brønsted-Lowry acid?

Accepted Answer

Question 17

For the system NH2OH(aq)+ CH3NH3+(aq)   CH3NH2(aq)+ NH3OH+(aq)the position of the equilibrium lies to the left. What is the strongest acid in this reaction?

Accepted Answer

Question 18

Most ceramics have high melting points and are brittle .

Accepted Answer

A) True 
 B)False

Question 19

For the system NH2OH + CH3NH3+   CH3NH2 + NH3OH+ the position of the equilibrium lies to the left. Which is the strongest acid in the system?

Accepted Answer

A) NH2OH 
B) CH3NH3+ 
C) CH3NH2 
D) NH3OH+ 
E) NH2OH and CH3NH3+ are equal in acid strength, and are the strongest acids in the system. 
A) NH2OH 
B) CH3NH3+ 
C) CH3NH2 
D) NH3OH+ 
E) NH2OH and CH3NH3+ are equal in acid strength, and are the strongest acids in the system.

Question 20

Which process for making ceramics, sol-gel or sintering, results in a more uniform and stronger ceramic material?

Accepted Answer

The answer of Which process for making ceramics, sol-gel or...

Exam 16: Acids and Bases, a Molecular Look

The strongest base that can exist in aqueous solution is ________.

In the reaction, HClO3 + N2H4 ClO3- + N2H5+, which two species are bases?

Given that X is the same atom for each of the following, which is the strongest oxoacid?

Arrange the acids H2Se, H2Te, and H2S in order of increasing acid strength.

Which 0.1 M solution would be the most acidic?

In the reaction, HClO3 + N2H4 ClO3- + N2H5+, which two species are acids?

The conjugate base of NH3 is NH4OH(aq).

The F- ion can react with BF3, forming the BF4- anion. In this reaction,

Which pair of reactants will yield H2SO3 as one of its products?

Given the following substances in order of increasing acid strength,HOCl(aq)< HC2H3O2(aq)< HC2O4-(aq)< HOCN(aq)< HNO2(aq)< HCl(aq)Which species listed below is the weakest base of that set?

In the reaction, H2PO4- + HAsO42- HPO42- + H2AsO4-, which two species are acids?

The conjugate acid of HPO42- is

In the reaction, H2PO4- + HAsO42- HPO42- + H2AsO4-, which species are a conjugate acid-base pair?

Five solutions were prepared by dissolving 0.00100 mole of each of the following in enough water to make 1.000 liter of solution. Which one of these compounds would make the most acidic solution?

Three oxoacids with the formulas shown are listed in order of decreasing acid strength:HZO3 > HYO3 > HXO3What is the formula for the strongest conjugate base of these acids?

Which one of the two species, H2Se or H3As, is the stronger Brønsted-Lowry acid?

For the system NH2OH(aq)+ CH3NH3+(aq) CH3NH2(aq)+ NH3OH+(aq)the position of the equilibrium lies to the left. What is the strongest acid in this reaction?

Most ceramics have high melting points and are brittle .

For the system NH2OH + CH3NH3+ CH3NH2 + NH3OH+ the position of the equilibrium lies to the left. Which is the strongest acid in the system?

Which process for making ceramics, sol-gel or sintering, results in a more uniform and stronger ceramic material?

A Very Brief History of Chemistry

Scientific Measurements

Elements, Compounds, and the Periodic Table

The Mole and Stoichiometry

Molecular View of Reactions in Aqueous Solutions

Oxidation-Reduction Reactions

Energy and Chemical Change

The Quantum Mechanical Atom

The Basics of Chemical Bonding

Theories of Bonding and Structure

Properties of Gases

Intermolecular Attractions and the Properties of Liquids and Solids

Mixtures at the Molecular Level: Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria in Aqueous Solutions

Solubility and Simultaneous Equilibria

Thermodynamics

Electrochemistry

Nuclear Reactions and Their Role in Chemistry

Metal Complexes

Organic Compounds, Polymers, and Biochemicals

Filters

In the reaction, HClO₃ + N₂H₄ ClO₃^- + N₂H₅⁺, which two species are bases?

Arrange the acids H₂Se, H₂Te, and H₂S in order of increasing acid strength.

In the reaction, HClO₃ + N₂H₄ ClO₃^- + N₂H₅⁺, which two species are acids?

The conjugate base of NH₃ is NH₄OH(aq).

The F^- ion can react with BF₃, forming the BF₄^- anion. In this reaction,

Which pair of reactants will yield H₂SO₃ as one of its products?

Given the following substances in order of increasing acid strength,HOCl(aq)< HC₂H₃O₂(aq)< HC₂O₄^-(aq)< HOCN(aq)< HNO₂(aq)< HCl(aq)Which species listed below is the weakest base of that set?

In the reaction, H₂PO₄^- + HAsO₄²^- HPO₄²^- + H₂AsO₄^-, which two species are acids?

The conjugate acid of HPO₄^2- is

In the reaction, H₂PO₄^- + HAsO₄²^- HPO₄²^- + H₂AsO₄^-, which species are a conjugate acid-base pair?

Three oxoacids with the formulas shown are listed in order of decreasing acid strength:HZO₃ > HYO₃ > HXO₃What is the formula for the strongest conjugate base of these acids?

Which one of the two species, H₂Se or H₃As, is the stronger Brønsted-Lowry acid?

For the system NH₂OH(aq)+ CH₃NH₃⁺(aq) CH₃NH₂(aq)+ NH₃OH⁺(aq)the position of the equilibrium lies to the left. What is the strongest acid in this reaction?

For the system NH₂OH + CH₃NH₃⁺ CH₃NH₂ + NH₃OH⁺ the position of the equilibrium lies to the left. Which is the strongest acid in the system?