Question 1

Select from the response list the compound that best fits the description: a substance produced when HNO3 neutralizes NaOH.

Accepted Answer

A)  KOH 
B)  NaNO3 
C)  H3PO4 
D)  K3PO4 
A)  KOH 
B)  NaNO3 
C)  H3PO4 
D)  K3PO4 B

Question 2

Which of the following equations represents an acid-base neutralization reaction?

Accepted Answer

A)  H2SO4 + Zn   ZnSO4 + H2 
B)  HNO3 + KOH   KNO3 + H2O 
C)  Ba(OH)2 + Na2SO4   BaSO4 + 2NaOH 
D)  more than one correct response 
E)  no correct response 
A)  H2SO4 + Zn   ZnSO4 + H2 
B)  HNO3 + KOH   KNO3 + H2O 
C)  Ba(OH)2 + Na2SO4   BaSO4 + 2NaOH 
D)  more than one correct response 
E)  no correct response B

Question 3

The Ca2+ ion concentration, in Eq/L, in a solution that contains one mole of Ca2+ ion and two moles of Cl- ion is

Accepted Answer

A)  0.5 Eq/L 
B)  1 Eq/L 
C)  2 Eq/L 
D)  3 Eq/L 
A)  0.5 Eq/L 
B)  1 Eq/L 
C)  2 Eq/L 
D)  3 Eq/L C

Question 4

Select from the response list for the acid that best fits the description: a diprotic weak acid.

Accepted Answer

A)  HCl 
B)  HC2H3O2 
C)  H2C3H2O2 
D)  H2SO4 
A)  HCl 
B)  HC2H3O2 
C)  H2C3H2O2 
D)  H2SO4

Question 5

Which of the following indicates an acidic solution?

Accepted Answer

A)  pH = 7.5 
B)  [H3O+] = 5.0 F1F1F1S1F1F1F10 10-5 
C)  [OH-] = 2.0 F1F1F1S1F1F1F10 10-8 
D)  more than one correct response 
E)  no correct response 
A)  pH = 7.5 
B)  [H3O+] = 5.0 F1F1F1S1F1F1F10 10-5 
C)  [OH-] = 2.0 F1F1F1S1F1F1F10 10-8 
D)  more than one correct response 
E)  no correct response

Question 6

In which of the following pairings of compounds are both members of the pair strong electrolytes?

Accepted Answer

A)  NaCN and LiI 
B)  NH3 and HI 
C)  NaOH and H2CO3 
D)  KBr and HBr 
A)  NaCN and LiI 
B)  NH3 and HI 
C)  NaOH and H2CO3 
D)  KBr and HBr

Question 7

For the solution description, select a correct characterization from the response list: [OH-] = 3.0   10--6 M.

Accepted Answer

A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution 
A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution

Question 8

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) The terms proton and hydrogen ion are used interchangeably in acid-base discussions.
(2) Some hydroxide ion is present in all acidic solutions.
(3) The two active species in a buffer are a strong acid and its conjugate base.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true.

Question 9

Which of the following statements concerning acid-base definitions is incorrect?

Accepted Answer

A)  All Arrhenius acids are Bronsted-Lowry acids. 
B)  All Bronsted-Lowry bases are Arrhenius bases. 
C)  Bronsted-Lowry acid-base definitions are independent of the solvent water. 
D)  More than one correct response. 
E)  No correct response. 
A)  All Arrhenius acids are Bronsted-Lowry acids. 
B)  All Bronsted-Lowry bases are Arrhenius bases. 
C)  Bronsted-Lowry acid-base definitions are independent of the solvent water. 
D)  More than one correct response. 
E)  No correct response.

Question 10

Select from the response list the compound or ion that best fits the description: conjugate base of H3PO4.

Accepted Answer

A)  H3PO4 
B)  H2PO4- 
C)  HPO42- 
D)  PO43- 
A)  H3PO4 
B)  H2PO4- 
C)  HPO42- 
D)  PO43-

Question 11

Acid ionization constants give information about

Accepted Answer

A)  the equilibrium constants for the reaction of weak acids with water 
B)  the number of reactive hydrogens present in acids 
C)  whether acids are polyprotic 
D)  whether acids can neutralize bases 
A)  the equilibrium constants for the reaction of weak acids with water 
B)  the number of reactive hydrogens present in acids 
C)  whether acids are polyprotic 
D)  whether acids can neutralize bases

Question 12

Which of the following does not describe an acidic solution?

Accepted Answer

A)  The pH is less than 7.0 
B)  The [OH-] is greater than 1.0 F1F1F1S1F1F1F10 10-7 
C)  The [H3O+] is greater than the [OH-] 
D)  The [OH-] is 6.0 F1F1F1S1F1F1F10F1F1F1S1F1F1F1010-10 
A)  The pH is less than 7.0 
B)  The [OH-] is greater than 1.0 F1F1F1S1F1F1F10 10-7 
C)  The [H3O+] is greater than the [OH-] 
D)  The [OH-] is 6.0 F1F1F1S1F1F1F10F1F1F1S1F1F1F1010-10

Question 13

Which of the following statements concerning electrolytes is correct?

Accepted Answer

A)  All strong acids are strong electrolytes. 
B)  Some salts are strong electrolytes and others are weak electrolytes. 
C)  Some molecular substances are strong electrolytes and others are weak electrolytes. 
D)  More than one correct response. 
E)  No correct response. 
A)  All strong acids are strong electrolytes. 
B)  Some salts are strong electrolytes and others are weak electrolytes. 
C)  Some molecular substances are strong electrolytes and others are weak electrolytes. 
D)  More than one correct response. 
E)  No correct response.

Question 14

Select from the response list the compound that best fits the description: a substance that reacts with H2SO4 to produce K2SO4.

Accepted Answer

A)  KOH 
B)  NaNO3 
C)  H3PO4 
D)  K3PO4 
A)  KOH 
B)  NaNO3 
C)  H3PO4 
D)  K3PO4

Question 15

According to the Bronsted-Lowry theory, a base is a(n)

Accepted Answer

A)  proton donor 
B)  proton acceptor 
C)  electron donor 
D)  electron acceptor 
A)  proton donor 
B)  proton acceptor 
C)  electron donor 
D)  electron acceptor

Question 16

For the solution description, select a correct characterization from the response list: [H3O+] is twice the [OH-].

Accepted Answer

A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution 
A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution

Question 17

In which of the following pairs of substances are both members of the pair salts?

Accepted Answer

A)  H2SeO4 and SrSeO4 
B)  NaBr and NaOH 
C)  NH4F and CsF 
D)  HNO3 and NaOH 
A)  H2SeO4 and SrSeO4 
B)  NaBr and NaOH 
C)  NH4F and CsF 
D)  HNO3 and NaOH

Question 18

For the solution description, select a correct characterization from the response list: pH = 7.00.

Accepted Answer

A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution 
A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution

Question 19

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) The two members of a Bronsted-Lowry conjugate acid-base pair will always differ from each other by one unit of charge.
(2) An equivalent of an ion is always the charge on the ion divided by two.
(3) In an acid-base titration, the indicator changes color when the reaction between it and added acid is complete.

Accepted Answer

A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true. 
A)  All three statements are true. 
B)  Two of the three statements are true. 
C)  Only one of the statements is true. 
D)  None of the statements is true.

Question 20

Characterize the following solution using the response list: aqueous NaCl solution.

Accepted Answer

A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution 
A)  an acidic solution 
B)  a basic solution 
C)  a neutral solution 
D)  a buffer solution

Exam 10: Acids, Bases, and Salts

Select from the response list the compound that best fits the description: a substance produced when HNO3 neutralizes NaOH.

Which of the following equations represents an acid-base neutralization reaction?

The Ca2+ ion concentration, in Eq/L, in a solution that contains one mole of Ca2+ ion and two moles of Cl- ion is

Select from the response list for the acid that best fits the description: a diprotic weak acid.

Which of the following indicates an acidic solution?

In which of the following pairings of compounds are both members of the pair strong electrolytes?

For the solution description, select a correct characterization from the response list: [OH-] = 3.0 10--6 M.

Which of the following statements concerning acid-base definitions is incorrect?

Select from the response list the compound or ion that best fits the description: conjugate base of H3PO4.

Acid ionization constants give information about

Which of the following does not describe an acidic solution?

Which of the following statements concerning electrolytes is correct?

Select from the response list the compound that best fits the description: a substance that reacts with H2SO4 to produce K2SO4.

According to the Bronsted-Lowry theory, a base is a(n)

For the solution description, select a correct characterization from the response list: [H3O+] is twice the [OH-].

In which of the following pairs of substances are both members of the pair salts?

For the solution description, select a correct characterization from the response list: pH = 7.00.

Characterize the following solution using the response list: aqueous NaCl solution.

Basic Concepts About Matter

Measurements in Chemistry

Atomic Structure and the Periodic Table

Chemical Bonding: the Ionic Bond Model

Chemical Bonding: the Covalent Bond Model

Chemical Calculations: Formula Masses, Moles, and Chemical Equations

Gases, Liquids, and Solids

Solutions

Chemical Reactions

Nuclear Chemistry

Saturated Hydrocarbons

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids, Esters, and Other Acid Derivatives

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes and Vitamins

Nucleic Acids

Biochemical Energy Production

Carbohydrate Metabolism

Lipid Metabolism

Protein Metabolism

Filters

Select from the response list the compound that best fits the description: a substance produced when HNO₃ neutralizes NaOH.

The Ca²⁺ ion concentration, in Eq/L, in a solution that contains one mole of Ca²⁺ ion and two moles of Cl^- ion is

For the solution description, select a correct characterization from the response list: [OH^-] = 3.0 10^-^-6 M.

Select from the response list the compound or ion that best fits the description: conjugate base of H₃PO₄.

Select from the response list the compound that best fits the description: a substance that reacts with H₂SO₄ to produce K₂SO₄.

For the solution description, select a correct characterization from the response list: [H₃O⁺] is twice the [OH^-].