Chapter 14

Which of the following statements is true for the reaction below? HF(aq) + HPO24- (aq) <--> F-(aq) + H2PO4-(aq) a. HF is the base b. HPO24- is the acid c. F- is the conjugate base d. H2PO4- is the conjugate base

c. F- is the conjugate base

A Lewis Acid

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Hydroxides of Group 1 metals A. Are all strong bases B. Are all weak bases C. Are all acids D. Do not dissociate in solution

A. Are all strong bases

What is the formula for acetic acid? a. Ch3COOH b. HNO3 c. HClO4 d. HCN

A. CH3COOH

Which stage of ionization of H3PO4 produces the most ions in solution? A. H3PO4 (aq) + H2O <-- -->H3O (aq) + H2PO(4)- (aq) B. H2PO(4)-(aq) + H2O <--> H3O (aq) + HPO(2)(4)- (aq) C. HPO(2)(4)- (aq) + H2O(l) <--> H30(aq) + PO(3)(4)-(aq) D. All stages produce the same number of ions in solution

A. H3PO4 (aq) + H2O <--> H30 (aq) + H2PO(4)- (aq)

In the following reaction, which substance acts as a Bronsted Lowry acid? A. HCl B. NH3 C. NH4+ D. Cl-

A. HCl

Which of the following substances is a weak base? A. NH3 B. KOH C. K2O D. NaOH

A. NH3

Strong acids are A. Strong electrolytes B. Weak electrolytes C. Nonelectrolytes D. Nonionized

A. Strong Electrolytes

Strong bases are A. Strong electrolytes B. Weak electrolytes C. Nonelectrolytes D. Also strong acids

A. Strong electrolytes

Water is amphoteric. If it reacts with a compound that is a stronger acid than itself, water acts as a A. Weak base B. Strong base C. Weak Acid D. Hydroxide ion

A. Weak base

Which of the following characteristics describes a base? A. Reacts with oils in the skin and converts them to acids. B. Forms alkaline solutions C. Is a nonelectrolyte D. None of the above

B. Forms alkaline solutions

Which of the following is a polyproptic acid? A. HCl B. H2SO4 C. HNO3 D. HF

B. H2SO4

An Arrhenius acid is a chemical compound that A. Does not conduct electricity B. Increases the concentration of H+ ions in solution C. A nonelecrolyte D. A strong acid

B. Increases the concentration of H+ ions in solution

In the following reaction, which substance acts a Bronsted Lowry base? A. HCl B. NH3 C. NH4+ D. Cl-

B. NH3

Which of the following substances can act as an Arrhenius base, a Bronsted Lowry Base, and a Lewis Base? A. F-(aq) B. NH3(aq) C. H+(aq) D. NaOH(aq)

B. NH3(aq)

Which of the following substances is both a Bronsted- Lowry base and an Arrhenius base? A. NH3(s) B. NH3(aq) C. HCl(g) D. HCl(aq)

B. NH3(aq)

In an acid base reaction, the conjugate bases of the weaker acid is the A. Stronger Acid B. Stronger Base C. Weaker Base D. None of the above

B. Stronger Base

A conjugate acid is an acid that forms when A. The acid gains a proton B. A base loses a proton C. A base gains a proton D. An atom accepts an electron pair

C. A base gains a proton

An amphoteric species is one that reacts at 25C as a(n) A. Acid Only B. Base only C. Acid or base D. None of the above

C. Acid or base

Which of the following is not a strong acid? A. HCL B. H2SO4 C. CH3COOH D. HBr

C. CH3COOH

In the following reaction which substance is the conjugate base of HClO(4)? HClO(4)(aq) + H2O(l) --> H3O+(aq) + ClO(4)-(aq) A. H2O(l) B. H3O (aq) C. ClO(4)- (aq) D. Both a and b

C. ClO(4)-

All Bronsted Lowry acids A. Are aqueous solutions B. Can act as Arrhenius acids C. Donate protons D. All of the Above

C. Donate Protons

What is the conjugate base of the hydronium ion, H3O_? A. OH- B. H+ C. H2O D. H3O(2)+

C. H2O

When a solution of hydrochloric acid, HCL, reacts with zinc, which of the following substances is a reactant? A. Cl- B. H+ C. H3O D. H2O

C. H30

The conjugate acid of the chloride ion, Cl-, is A. Cl2 B. H+ C. HCl D. ClO

C. HCl

Which of the following is a conjugate pair? a. H+ and OH- b. NH2- and NH4+ c. Hcl and Cl- d. H2So4 and SO24-

C. Hcl and Cl-

Which of the following can act as a Lewis Acid? a. NH3(aq) B. Cl-(aq) C. BF(4)- D. Ag+(aq)

D. Ag+(aq)

A strong acid A. Ionizes completely in solution B.Produces hydronium ions in solution C. Reacts with metals that are more active than hydrogen D. All of the Above

D. All of the Above

Which of the following will be present in an aqueous solution of H2SO4? A. H3O+(aq) B. HSO(4)- C. SO(2)(4)- D. All of the above

D. All of the above

A conjugate base is the species that A. Remains after a base has given up a proton B. Is formed by the addition of a proton C. Is formed by the addition of a proton to a base. D. Remains after an acid has given up a proton

D. Remains after an acid has given up a proton

Ions that are present before and after a neutralization reaction are A. nonelectrolytes B. Metal Ions C. Neutral ions D. Spectator ions

D. Spectator Ions

A highly polar molecule that contains a weak bond between a hydrogen atom and another element would be A. Weak acid B. Unable to ionize completely C. A nonelectrolyte D. Strong Acid

D. Strong Acid

Which of the following is most acidic? A. H2CrO4 B. Cr(OH)3 C. Cr(OH)2 D. Cr

H2CrO4

Identify the salt that forms when a solution of H2SO4 is titrated with a solution of Ca(OH)2. a. Calcium sulfate b. Calcium hydroxide c. calcium oxide d. calcium phosphate

a. calcium sulfate

Which of the following species is the conjugate acid of another species in the list? a. PO34- b. H3PO4 c. H2O d. H2PO4-

b. H3PO4

Which of the following is not a characteristic of an acid? a. an acid changes the color of an indicator b. an acid has a bitter taste c. an acid ionizes in water d. an acid produces hydronium ions in water

b. acid has a bitter taste

When an acid reacts with an active metal, a. the hydronium ions concentration increases. b. the metal forms anions c. hydrogen gas is produced d. carbon dioxide gas is produced

c. hydrogen gas is produced

Which of the following is a Bronsted Lowry base? a. hydrochloric acid b. acetic acid c. nitric acid d. sulfuric acid

d. sulfuric acid