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What is the pH of a solution with a [OH ] of 1.0 1010 M?


A) "1.0 1010"
B) "10.0"
C) "4.00"
D) "10.0"
E) "4.00"

F) B) and E)
G) B) and C)

Correct Answer

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When a base is dissolved in water, it reacts to give _________ and ________.


A) hydroxide; hydronium
B) hydronium; the conjugate acid
C) hydroxide; the conjugate acid
D) hydronium; the conjugate base
E) hydroxide; the conjugate base

F) B) and D)
G) A) and E)

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Which of the following reactions best illustrates the reaction of an acid in aqueous solution?


A) Which of the following reactions best illustrates the reaction of an acid in aqueous solution? A) B) C) D) E)
B) Which of the following reactions best illustrates the reaction of an acid in aqueous solution? A) B) C) D) E)
C) Which of the following reactions best illustrates the reaction of an acid in aqueous solution? A) B) C) D) E)
D) Which of the following reactions best illustrates the reaction of an acid in aqueous solution? A) B) C) D) E)
E) Which of the following reactions best illustrates the reaction of an acid in aqueous solution? A) B) C) D) E)

F) C) and D)
G) B) and C)

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When a person hyperventilates, they breathe very quickly, exhaling CO2 more quickly than it can be produced. This reduces the concentration of CO2 in the blood. According to the chemical equation below and LeChatelier's principle, how is the bicarbonate equilibrium affected by the reduction of CO2 in the blood? When a person hyperventilates, they breathe very quickly, exhaling CO<sub>2</sub> more quickly than it can be produced. This reduces the concentration of CO<sub>2</sub> in the blood. According to the chemical equation below and LeChatelier's principle, how is the bicarbonate equilibrium affected by the reduction of CO<sub>2</sub> in the blood? A) The equilibrium is unchanged. B) More H<sub>3</sub>O<sup>+</sup> is produced. C) The equilibrium is shifted to the right. D) The H<sub>3</sub>O<sup>+ </sup>concentration decreases. E) More HCO<sub>3</sub><font face= symbol ><sup></sup></font> is produced.


A) The equilibrium is unchanged.
B) More H3O+ is produced.
C) The equilibrium is shifted to the right.
D) The H3O+ concentration decreases.
E) More HCO3 is produced.

F) A) and E)
G) B) and E)

Correct Answer

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Which of the following acids is not a strong acid?


A) HCl
B) HI
C) HNO3
D) CH3COOH
E) H2SO4

F) A) and D)
G) None of the above

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In the acid-base reaction between ammonia and water, which bond is broken in order to give ammonium and hydroxide? In the acid-base reaction between ammonia and water, which bond is broken in order to give ammonium and hydroxide? A) H-H B) N-O C) N-H D) O-H E) All of the above


A) H-H
B) N-O
C) N-H
D) O-H
E) All of the above

F) C) and E)
G) None of the above

Correct Answer

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The neutralization reaction of potassium hydrogen carbonate (KHCO3) and HI produces what spectator ion?


A) CO2
B) KI
C) H2CO3
D) H2O
E) H+

F) A) and D)
G) A) and B)

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What do all bases have in common?


A) They contain an -OH group.
B) They contain a nitrogen.
C) They contain an oxygen.
D) They are salts.
E) They contain a nonbonding pair of electrons.

F) B) and C)
G) C) and E)

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Water can react as both an acid and a base, depending on its environment. Because of this characteristic, water is a(n) _________ molecule.


A) amphoteric
B) autonomous
C) complex
D) reactive
E) conjugated

F) A) and B)
G) B) and E)

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Which of the following is a balanced equation for a neutralization reaction?


A) Al(OH) 3(s) + HCl → 3 H2O + AlCl3(aq)
B) Mg(OH) 2(s) + HNO3 → 2 H2O + Mg(NO3) 2(aq)
C) Ca(OH) 2(s) + HNO3 → 2 H2O + Ca(NO3) 2(aq)
D) KOH(s) + HNO3 → H2O + KNO3(aq)
E) 2 Al(OH) 3(s) + HCl → 3 H2O + AlCl3(aq)

F) A) and B)
G) A) and C)

Correct Answer

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What is the pH of a urine sample with a hydronium concentration of 7.9 108?


A) "7.10"
B) "7.10"
C) "6.90"
D) "6.90"
E) "7.00"

F) B) and D)
G) B) and C)

Correct Answer

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In the body, ethylene glycol (antifreeze) is metabolized to a(n)


A) hydrocarbon.
B) diol.
C) ether.
D) toxic organic acid.
E) Ethylene glycol is not metabolized.

F) All of the above
G) D) and E)

Correct Answer

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The neutralization reaction of potassium hydrogen carbonate (KHCO3) and HI produces what gas?


A) CO2
B) O2
C) H2CO3
D) H2O
E) H+

F) B) and D)
G) A) and C)

Correct Answer

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The following figure illustrates the action of a HF and F buffer where the sizes of the boxes are proportional to the concentrations of HF and F in solution. According to this figure, what happens when H3O+ is added to the HF/F buffer? The following figure illustrates the action of a HF and F<font face= symbol ><sup></sup></font> buffer where the sizes of the boxes are proportional to the concentrations of HF and F<font face= symbol ><sup></sup></font> in solution. According to this figure, what happens when H<sub>3</sub>O<sup>+</sup> is added to the HF/F<font face= symbol ><sup></sup></font> buffer? A) The pH decreases. B) The pH increases. C) The concentration of HF increases. D) The concentration of F<font face= symbol ><sup></sup></font> increases. E) Nothing happens.


A) The pH decreases.
B) The pH increases.
C) The concentration of HF increases.
D) The concentration of F increases.
E) Nothing happens.

F) A) and E)
G) All of the above

Correct Answer

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Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak acid?


A) Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak acid? A) B) C) D) E)
B) Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak acid? A) B) C) D) E)
C) Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak acid? A) B) C) D) E)
D) Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak acid? A) B) C) D) E)
E) Each circle is a sample of an aqueous acidic or basic solution. Which of the solutions contains a weak acid? A) B) C) D) E)

F) A) and C)
G) A) and D)

Correct Answer

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Which of the statements best describes the following reaction? HCOOH + H2O Which of the statements best describes the following reaction? HCOOH + H<sub>2</sub>O HCOO<font face= symbol ><sup></sup></font> + H<sub>3</sub>O<sup>+</sup> A) This reaction is the dissociation of a strong acid. B) This reaction is the dissociation of a weak acid. C) This is the reaction of a strong base. D) This is the reaction of a weak base. E) This is not an acid-base reaction. HCOO + H3O+


A) This reaction is the dissociation of a strong acid.
B) This reaction is the dissociation of a weak acid.
C) This is the reaction of a strong base.
D) This is the reaction of a weak base.
E) This is not an acid-base reaction.

F) B) and C)
G) B) and D)

Correct Answer

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Which of the following statements best describes what happens when an acid reacts with water? I. The acid donates a proton. II. Water donates a proton. III. Water acts as a base. IV. Hydronium is formed. V. Hydroxide is formed.


A) I only
B) II only
C) I, III, and V
D) I, III, and IV
E) II and V

F) A) and E)
G) B) and C)

Correct Answer

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Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution, as shown on the following drug label. Lidocaine-HCl is a(n) Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution, as shown on the following drug label. Lidocaine-HCl is a(n) A) weak acid. B) base. C) salt. D) strong acid. E) unstable molecule.


A) weak acid.
B) base.
C) salt.
D) strong acid.
E) unstable molecule.

F) C) and D)
G) A) and B)

Correct Answer

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Which of the following types of molecules and ions is NOT a base?


A) an anion
B) a cation
C) a neutral molecule containing a nonbonding pair of electrons
D) a tertiary nitrogen
E) All of these are bases.

F) B) and E)
G) A) and D)

Correct Answer

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Which of the following conditions could cause respiratory acidosis?


A) hyperventilation
B) asthma
C) kidney failure
D) excessive vomiting
E) starvation

F) B) and D)
G) C) and D)

Correct Answer

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