Question 1

Which of the following is a polyprotic acid?

Accepted Answer

A)   HCl
B)   HNO3
C)   H2SO4
D)   H3PO4
E)   both c and d

Question 2

Which of the following is a cause of respiratory acidosis?

Accepted Answer

A)   a poor diet
B)   hyperventilation
C)   hypoventilation
D)   intense exercise

Question 3

Consider the following reaction. CH3OH(l) + CH3OH(l)  CH3O-(l) + CH3OH2+(l)
This reaction could be classified as both an autoionization reaction and a proton transfer reaction.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is the conjugate base of H3PO4?

Accepted Answer

A)   H2PO4-
B)   HPO42-
C)   PO43-
D)   OH-
E)   both H2PO4- and HPO42-

Question 5

All of the following solutions are 0.025 M, which of the solutions contains the highest concentration of OH-?

Accepted Answer

A)   acetic acid (pH 3.17) 
B)   ascorbic acid (pH 6.70) 
C)   phenol (pH 5.73) 
D)   iodic acid (pH 1.60)  B

Question 6

If you dissolve 0.10 mol of a generic acid HA in 1.0 L of solution, the pH is 3.5. Is HA a strong or weak acid? Explain your answer.

Accepted Answer

HA is a weak acid that is only partially...

Question 7

In an aqueous solution. the [OH-] is 2.0 × 10-3 M. What is the [H3O+] of this solution?

Accepted Answer

A)   5.0 × 10-12 M
B)   2.0 × 1011 M
C)   2.0 × 10-3 M
D)   5.0 × 1012 M

Question 8

Which of the following solutions is the most alkaline?

Accepted Answer

A)   coffee (pH 5.12) 
B)   urine (pH 7.24) 
C)   dishwasher detergent (pH 2.38) 
D)   drain cleaner (pH 10.24)  D

Question 9

The following solutions are ranked from the most acidic to the most basic. Most acidic urine (pH 5.89) intestine contents (pH 8.06) blood (pH 7.30) Most basic

Accepted Answer

A) True 
 B)False

Question 10

A sodium hydroxide solution has a pH of 12.40, what is the OH- concentration in this solution?

Accepted Answer

A)   4.0 × 101 M
B)   4.0 × 10-13 M
C)   2.5 × 10- 2 M
D)   2.5 × 1012 M

Question 11

When a solution of HF (a weak acid)  is added to a solution containing HPO42- (here, a base) , the equation for reaction that occurs is:

Accepted Answer

A)   42- (here, a base) , the equation for reaction that occurs is: 
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Question 12

Consider the image which depicts the reaction between CH3COOH and H2O. Reactants: Products: 3COOH and H2O. Reactants: Products:     If the composition of the equilibrium mixture is as represented below   CH3COOH is classified as A)  strong electrolyte B)  weak electrolyte C)  nonelectrolyte" class="answers-bank-image d-inline" rel="preload" > 3COOH and H2O. Reactants: Products:     If the composition of the equilibrium mixture is as represented below   CH3COOH is classified as A)  strong electrolyte B)  weak electrolyte C)  nonelectrolyte" class="answers-bank-image d-inline" rel="preload" > If the composition of the equilibrium mixture is as represented below 3COOH and H2O. Reactants: Products:     If the composition of the equilibrium mixture is as represented below   CH3COOH is classified as A)  strong electrolyte B)  weak electrolyte C)  nonelectrolyte" class="answers-bank-image d-inline" rel="preload" > CH3COOH is classified as

Accepted Answer

A)   strong electrolyte
B)   weak electrolyte
C)   nonelectrolyte

Question 13

NaOH and H2SO4 are mixed and allowed to react. How many grams of NaOH are required to neutralize 17.25 g of H2SO4?

Accepted Answer

Question 14

The following represents the structure of a hydronium ion.

Accepted Answer

A) True 
 B)False

Question 15

When LiOH reacts with HNO3, the molecular equation for the reaction is:

Accepted Answer

A)   H+ + OH- → H2O
B)   Li+ + NO3- → LiNO3
C)   LiOH + HNO3 → LiNO3 + H2O
D)   LiOH → Li+ + OH-
E)   HNO3 → H+ + NO3-F)  Li+ + OH- + H+ + NO3- → LiNO3+ H2O

Question 16

When a solution of KOH is added to a solution of HCO2H (formic acid) , which of the following would be shown in the molecular equation as a product of the reaction?

Accepted Answer

A)   H2O
B)   KH
C)   K-
D)   KCO2H
E)   both H2O and KCO2HF)  both H2O and KH

Question 17

Write the equation for the ionization of the weak acid, formic acid, HCHO2, in water.

Accepted Answer

HCHO₂(aq) +...

Question 18

When fumaric acid, H2C4H2O4 reacts with NaOH, the second reaction that occurs is

Accepted Answer

A)   2C4H2O4 reacts with NaOH, the second reaction that occurs is 
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Question 19

Which of the following is characteristic of a buffer?

Accepted Answer

A)   The pH will go down significantly when H3O+ is added to the buffer.
B)   The pH will go down very slightly when H3O+ is added to a buffer.
C)   The pH will go up significantly when H3O+ is added to the buffer.
D)   The pH will go up very slightly when H3O+ is added to the buffer. B

Question 20

Which of the following is true of a buffer prepared with equal concentrations of an acid and its conjugate base?

Accepted Answer

A)   pH = 7
B)   pH = pKa
C)   The pH depends on the concentration of the buffer.
D)   none of the above

Exam 7: Acids and Bases

Which of the following is a polyprotic acid?

Correct AnswerverifiedShow Answer

Which of the following is a cause of respiratory acidosis?

Correct AnswerverifiedShow Answer

Consider the following reaction. CH3OH(l) + CH3OH(l) CH3O-(l) + CH3OH2+(l) This reaction could be classified as both an autoionization reaction and a proton transfer reaction.

Correct AnswerverifiedShow Answer

Which of the following is the conjugate base of H3PO4?

Correct AnswerverifiedShow Answer

All of the following solutions are 0.025 M, which of the solutions contains the highest concentration of OH-?

Correct AnswerverifiedB

If you dissolve 0.10 mol of a generic acid HA in 1.0 L of solution, the pH is 3.5. Is HA a strong or weak acid? Explain your answer.

Correct AnswerverifiedHA is a weak acid that is only partially...View AnswerShow Answer

In an aqueous solution. the [OH-] is 2.0 × 10-3 M. What is the [H3O+] of this solution?

Correct AnswerverifiedShow Answer

Which of the following solutions is the most alkaline?

Correct AnswerverifiedD

The following solutions are ranked from the most acidic to the most basic. Most acidic urine (pH 5.89) intestine contents (pH 8.06) blood (pH 7.30) Most basic

Correct AnswerverifiedShow Answer

A sodium hydroxide solution has a pH of 12.40, what is the OH- concentration in this solution?

Correct AnswerverifiedShow Answer

When a solution of HF (a weak acid) is added to a solution containing HPO42- (here, a base) , the equation for reaction that occurs is:

Correct AnswerverifiedShow Answer

Consider the image which depicts the reaction between CH3COOH and H2O. Reactants: Products: If the composition of the equilibrium mixture is as represented below CH3COOH is classified as

Correct AnswerverifiedShow Answer

NaOH and H2SO4 are mixed and allowed to react. How many grams of NaOH are required to neutralize 17.25 g of H2SO4?

Correct AnswerverifiedShow Answer

The following represents the structure of a hydronium ion.

Correct AnswerverifiedShow Answer

When LiOH reacts with HNO3, the molecular equation for the reaction is:

Correct AnswerverifiedShow Answer

When a solution of KOH is added to a solution of HCO2H (formic acid) , which of the following would be shown in the molecular equation as a product of the reaction?

Correct AnswerverifiedShow Answer

Write the equation for the ionization of the weak acid, formic acid, HCHO2, in water.

Correct AnswerverifiedHCHO2(aq) +...View AnswerShow Answer

When fumaric acid, H2C4H2O4 reacts with NaOH, the second reaction that occurs is

Correct AnswerverifiedShow Answer

Which of the following is characteristic of a buffer?

Correct AnswerverifiedB

Which of the following is true of a buffer prepared with equal concentrations of an acid and its conjugate base?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Consider the following reaction. CH₃OH(l) + CH₃OH(l) CH₃O^-(l) + CH₃OH₂⁺(l) This reaction could be classified as both an autoionization reaction and a proton transfer reaction.

Correct Answer
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Which of the following is the conjugate base of H₃PO₄?

Correct Answer
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All of the following solutions are 0.025 M, which of the solutions contains the highest concentration of OH^-?

Correct Answer
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B

Correct Answer
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HA is a weak acid that is only partially...
View Answer

In an aqueous solution. the [OH^-] is 2.0 × 10^-3 M. What is the [H₃O⁺] of this solution?

Correct Answer
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Correct Answer
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D

Correct Answer
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A sodium hydroxide solution has a pH of 12.40, what is the OH^- concentration in this solution?

Correct Answer
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When a solution of HF (a weak acid) is added to a solution containing HPO₄^2- (here, a base) , the equation for reaction that occurs is:

Correct Answer
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Consider the image which depicts the reaction between CH₃COOH and H₂O. Reactants: Products: If the composition of the equilibrium mixture is as represented below CH₃COOH is classified as

Correct Answer
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NaOH and H₂SO₄ are mixed and allowed to react. How many grams of NaOH are required to neutralize 17.25 g of H₂SO₄?

Correct Answer
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Correct Answer
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When LiOH reacts with HNO₃, the molecular equation for the reaction is:

Correct Answer
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When a solution of KOH is added to a solution of HCO₂H (formic acid) , which of the following would be shown in the molecular equation as a product of the reaction?

Correct Answer
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Write the equation for the ionization of the weak acid, formic acid, HCHO₂, in water.

Correct Answer
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HCHO₂(aq) +...
View Answer

When fumaric acid, H₂C₄H₂O₄ reacts with NaOH, the second reaction that occurs is

Correct Answer
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Correct Answer
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B

Correct Answer
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