Question 1

Would adding CaO to water be expected to form an acidic or basic solution?

Accepted Answer

basic

Question 2

In the reaction, HSO4-(aq)+ OH-(aq)   SO42-(aq)+ H2O(l), list the species that are conjugate acid-base pairs.

Accepted Answer

HSO₄^- and SO₄^2-, OH^- and H₂O

Question 3

Which one of the two species, HF(aq)or HI(aq), is the weaker Brønsted-Lowry acid?

Accepted Answer

HF

Question 4

Three binary acids with the formulas shown are listed in order of decreasing acid strength:HZ > HY > HX What is the formula for the strongest conjugate base of these acids?

Accepted Answer

The answer of Three binary acids with the formulas shown...

Question 5

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

Accepted Answer

A) Cl-(aq) 
B) OCl-(aq) 
C) H2C2O4(aq) 
D) NO2-(aq) 
E) OCN-(aq) 
A) Cl-(aq) 
B) OCl-(aq) 
C) H2C2O4(aq) 
D) NO2-(aq) 
E) OCN-(aq)

Question 6

Which 0.1 M solution would be the most acidic?

Accepted Answer

A) ZnCl2 (aq) 
B) CdCl2 (aq) 
C) FeCl3 (aq) 
D) AuCl3 (aq) 
E) NaCl (aq) 
A) ZnCl2 (aq) 
B) CdCl2 (aq) 
C) FeCl3 (aq) 
D) AuCl3 (aq) 
E) NaCl (aq)

Question 7

In the reaction, HSO4- + CN-    HCN + SO42-, which species are a conjugate acid-base pair?

Accepted Answer

A) HSO4-, CN- 
B) CN-, HCN 
C) CN-, SO42- 
D) HCN, SO42- 
E) HCN, HSO4- 
A) HSO4-, CN- 
B) CN-, HCN 
C) CN-, SO42- 
D) HCN, SO42- 
E) HCN, HSO4-

Question 8

In the reaction, HSO4- + HS-   H2S + SO42-, which species are a conjugate acid-base pair?

Accepted Answer

A) HSO4-, HS- 
B) HSO4-, H2S 
C) HS-, H2S 
D) HS-, SO42- 
E) H2S, SO42- 
A) HSO4-, HS- 
B) HSO4-, H2S 
C) HS-, H2S 
D) HS-, SO42- 
E) H2S, SO42-

Question 9

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

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 10

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) Na2O 
B) BaO 
C) Ga2O3 
D) Al2O3 
E) P4O6 
A) Na2O 
B) BaO 
C) Ga2O3 
D) Al2O3 
E) P4O6

Question 11

Ceramic material made by the sol-gel process involve the reaction of

Accepted Answer

A) water and acids. 
B) ethanol and water. 
C) water and metal oxides. 
D) acids and metal alkoxides. 
E) water and metal alkoxides. 
A) water and acids. 
B) ethanol and water. 
C) water and metal oxides. 
D) acids and metal alkoxides. 
E) water and metal alkoxides.

Question 12

In the reaction, HSO4- + CN-   HCN + SO42-, which two species are both bases?

Accepted Answer

A) HSO4-, CN- 
B) HSO4-, HCN 
C) SO42-, HCN 
D) CN-, HCN 
E) CN-, SO42- 
A) HSO4-, CN- 
B) HSO4-, HCN 
C) SO42-, HCN 
D) CN-, HCN 
E) CN-, SO42-

Question 13

Which solution should be the least acidic?

Accepted Answer

A) Al(NO3)3 (aq) 
B) Cd(NO3)2 (aq) 
C) Ga(NO3)3 (aq) 
D) KNO3 (aq) 
E) Zn(NO3)2 (aq) 
A) Al(NO3)3 (aq) 
B) Cd(NO3)2 (aq) 
C) Ga(NO3)3 (aq) 
D) KNO3 (aq) 
E) Zn(NO3)2 (aq)

Question 14

Which solution is more acidic, AlCl3(aq)or InCl3(aq)?

Accepted Answer

Question 15

O2- ion is produced by the dissociation of MgO when it is dissolved in water. The O2- ion acts as a strong acid.

Accepted Answer

A) True 
 B)False

Question 16

Explain why the strong acids HNO3 and HCl both have the same relative acid strength in water.

Accepted Answer

All strong acids completely di

Question 17

Which 0.1 M solution would be the least acidic?

Accepted Answer

A) ZnCl2 (aq) 
B) CdCl2 (aq) 
C) FeCl3 (aq) 
D) NiCl2 (aq) 
E) CuCl2 (aq) 
A) ZnCl2 (aq) 
B) CdCl2 (aq) 
C) FeCl3 (aq) 
D) NiCl2 (aq) 
E) CuCl2 (aq)

Question 18

A useful property of most ceramics is that they are very hard and resistant to wear.

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 weakest base in the system?

Accepted Answer

A) NH2OH 
B) CH3NH3+ 
C) CH3NH2 
D) NH3OH+ 
E) CH3NH2 and NH3OH+ are equal in base strength and are the weakest bases in the system 
A) NH2OH 
B) CH3NH3+ 
C) CH3NH2 
D) NH3OH+ 
E) CH3NH2 and NH3OH+ are equal in base strength and are the weakest bases in the system

Question 20

Which of the following would form an acidic solution when added to water?

Accepted Answer

A) SO2 (g) 
B) Na2O (s) 
C) MgO (s) 
D) H2O (g) 
E) None of these 
A) SO2 (g) 
B) Na2O (s) 
C) MgO (s) 
D) H2O (g) 
E) None of these

Exam 16: Acids and Bases, a Molecular Look

Would adding CaO to water be expected to form an acidic or basic solution?

In the reaction, HSO4-(aq)+ OH-(aq) SO42-(aq)+ H2O(l), list the species that are conjugate acid-base pairs.

Which one of the two species, HF(aq)or HI(aq), is the weaker Brønsted-Lowry acid?

Three binary acids with the formulas shown are listed in order of decreasing acid strength:HZ > HY > HX What is the formula for the strongest conjugate base of these acids?

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

Which 0.1 M solution would be the most acidic?

In the reaction, HSO4- + CN- HCN + SO42-, which species are a conjugate acid-base pair?

In the reaction, HSO4- + HS- H2S + SO42-, which species are a conjugate acid-base pair?

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

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?

Ceramic material made by the sol-gel process involve the reaction of

In the reaction, HSO4- + CN- HCN + SO42-, which two species are both bases?

Which solution should be the least acidic?

Which solution is more acidic, AlCl3(aq)or InCl3(aq)?

O2- ion is produced by the dissociation of MgO when it is dissolved in water. The O2- ion acts as a strong acid.

Explain why the strong acids HNO3 and HCl both have the same relative acid strength in water.

Which 0.1 M solution would be the least acidic?

A useful property of most ceramics is that they are very hard and resistant to wear.

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

Which of the following would form an acidic solution when added to water?

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, HSO₄^-(aq)+ OH^-(aq) SO₄^2-(aq)+ H₂O(l), list the species that are conjugate acid-base pairs.

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

In the reaction, HSO₄^- + CN^- HCN + SO₄²^-, which species are a conjugate acid-base pair?

In the reaction, HSO₄^- + HS^- H₂S + SO₄^2-, which species are a conjugate acid-base pair?

In the reaction, H₂PO₄^- + HAsO₄^2- HPO₄^2- + H₂AsO₄^-, which two species are bases?

In the reaction, HSO₄^- + CN^- HCN + SO₄^2-, which two species are both bases?

Which solution is more acidic, AlCl₃(aq)or InCl₃(aq)?

O^2- ion is produced by the dissociation of MgO when it is dissolved in water. The O^2- ion acts as a strong acid.

Explain why the strong acids HNO₃ and HCl both have the same relative acid strength in water.

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