Question 1

Exactly 17.0 mL of a H2SO4 solution was required to neutralize 45.0 mL of 0.235 M NaOH.What was the concentration of the H2SO4 solution?
GIVEN: H2SO4 (aq) + 2NaOH (aq) → 2H2O (l) + Na2SO4 (aq)

Accepted Answer

A)  5.63 M
B)  0.622 M
C)  0.00529 M
D)  0.311 M
E)  none of the aboveF) B) and D)
G) A) and D)

Question 2

A solution that has a pH of 10 would also have a pOH of 4.

Accepted Answer

A) True 
 B)False

Question 3

Which solution below has the highest concentration of hydroxide ions?

Accepted Answer

A)  pH = 3.21
B)  pH = 12.49
C)  pH = 7.00
D)  pH = 10.12
E)  pH = 7.93F) D) and E)
G) B) and C)

Question 4

Acid rain legislation targeted the release of which compound by industry?

Accepted Answer

A)  CO2
B)  SO2
C)  dioxin
D)  benzene
E)  none of the aboveF) D) and E)
G) A) and B)

Question 5

In a solution that has a pH = 7.0,

Accepted Answer

A)  [H3O+] > [OH-]
B)  [H3O+] -]
C)  [H3O+] = [OH-]
D)  [H3O+] + [OH-] = Kw
E)  none of the aboveF) A) and B)
G) A) and C)

Question 6

What is the concentration of the hydronium ions in a neutral solution?

Accepted Answer

A)  0.0 M
B)  1.0 × 10-7 M
C)  1.0 × 10-14 M
D)  > 1.0× 10-7 M
E)  -7 MF) A) and C)
G) A) and B)

Question 7

The Bronsted-Lowry definition of a base is:

Accepted Answer

A)  a proton donor.
B)  a proton acceptor.
C)  produces H⁺ in solution.
D)  produces OH⁻ in solution.
E)  none of the aboveF) A) and D)
G) None of the above

Question 8

Acids turn litmus paper blue.

Accepted Answer

A) True 
 B)False

Question 9

A 0.10 M solution of an electrolyte has a pH of 4.5.The electrolyte is:

Accepted Answer

A)  a strong acid.
B)  a strong base.
C)  a weak acid.
D)  a weak base.
E)  none of the aboveF) A) and D)
G) None of the above

Question 10

What is the concentration of H+ in solution given the [OH⁻] = 2.54 × 10-4?

Accepted Answer

A)  3.94 × 10-11 M
B)  2.54 × 10-11 M
C)  1.0 × 1014 M
D)  not enough information
E)  none of the aboveF) C) and E)
G) A) and B) A

Question 11

What is the pH of a solution that has a H⁺ concentration equal to 1.76 × 10-5 M?

Accepted Answer

A)  4.77
B)  5.20
C)  0.22
D)  10.20
E)  none of the aboveF) B) and E)
G) A) and B) A

Question 12

Ammonia (NH3) ionizes in water to form a basic solution.What is the concentration of OH- ions in a
0.75 M NH3 solution?

Accepted Answer

A)  0.75 M
B)  
C)  > 0.75 M
D)  No OH- ions exist in a solution of NH3.
E)  none of the aboveF) C) and D)
G) B) and E)

Question 13

What is the concentration of H+ in a 0.121 M HCl solution?

Accepted Answer

A)  1.0 × 10-14 M
B)  
C)  0.121 M
D)  not enough information
E)  none of the aboveF) B) and E)
G) A) and B)

Question 14

The titration of 25.00 mL a 0.125 M HClO4 solution required 21.37 mL of KOH to reach the endpoint.What is the concentration of the KOH?

Accepted Answer

A)  0.292 M
B)  0.0668 M
C)  0.146 M
D)  0.134 M
E)  none of the aboveF) None of the above
G) B) and C)

Question 15

A 25.0 ml sample of 0.105 M HCl was titrated with 31.5 ml of NaOH.What is the concentration of the NaOH?

Accepted Answer

A)  0.0833 M
B)  0.132 M
C)  0.105 M
D)  0.075 M
E)  none of the aboveF) B) and D)
G) A) and B) A

Question 16

A neutralization reaction between an acid and sodium hydroxide formed water and the salt named sodium sulfate.What was the formula of the acid that was neutralized?

Accepted Answer

A)  H2S
B)  H2SO4
C)  HCl
D)  Na2SO4
E)  none of the aboveF) None of the above
G) B) and E)

Question 17

Water always acts as an acid in reactions.

Accepted Answer

A) True 
 B)False

Question 18

The salt that forms due to neutralization of phosphoric acid by calcium hydroxide has the formula Ca3P2.

Accepted Answer

A) True 
 B)False

Question 19

In a titration,the indicator is used to signal when the endpoint has been reached.

Accepted Answer

A) True 
 B)False

Question 20

Which combination below will be a buffer solution?

Accepted Answer

A)  HCl and Cl⁻
B)  HNO3 and NaNO3
C)  HC2H3O2 and NaC2H3O2
D)  NaBr and NaOH
E)  All of the above are true.F) D) and E)
G) None of the above

Exam 14: Acids and Bases

Exactly 17.0 mL of a H2SO4 solution was required to neutralize 45.0 mL of 0.235 M NaOH.What was the concentration of the H2SO4 solution? GIVEN: H2SO4 (aq) + 2NaOH (aq) → 2H2O (l) + Na2SO4 (aq)

Correct AnswerverifiedShow Answer

A solution that has a pH of 10 would also have a pOH of 4.

Correct AnswerverifiedShow Answer

Which solution below has the highest concentration of hydroxide ions?

Correct AnswerverifiedShow Answer

Acid rain legislation targeted the release of which compound by industry?

Correct AnswerverifiedShow Answer

In a solution that has a pH = 7.0,

Correct AnswerverifiedShow Answer

What is the concentration of the hydronium ions in a neutral solution?

Correct AnswerverifiedShow Answer

The Bronsted-Lowry definition of a base is:

Correct AnswerverifiedShow Answer

Acids turn litmus paper blue.

Correct AnswerverifiedShow Answer

A 0.10 M solution of an electrolyte has a pH of 4.5.The electrolyte is:

Correct AnswerverifiedShow Answer

What is the concentration of H+ in solution given the [OH⁻] = 2.54 × 10-4?

Correct AnswerverifiedA

What is the pH of a solution that has a H⁺ concentration equal to 1.76 × 10-5 M?

Correct AnswerverifiedA

Ammonia (NH3) ionizes in water to form a basic solution.What is the concentration of OH- ions in a 0.75 M NH3 solution?

Correct AnswerverifiedShow Answer

What is the concentration of H+ in a 0.121 M HCl solution?

Correct AnswerverifiedShow Answer

The titration of 25.00 mL a 0.125 M HClO4 solution required 21.37 mL of KOH to reach the endpoint.What is the concentration of the KOH?

Correct AnswerverifiedShow Answer

A 25.0 ml sample of 0.105 M HCl was titrated with 31.5 ml of NaOH.What is the concentration of the NaOH?

Correct AnswerverifiedA

A neutralization reaction between an acid and sodium hydroxide formed water and the salt named sodium sulfate.What was the formula of the acid that was neutralized?

Correct AnswerverifiedShow Answer

Water always acts as an acid in reactions.

Correct AnswerverifiedShow Answer

The salt that forms due to neutralization of phosphoric acid by calcium hydroxide has the formula Ca3P2.

Correct AnswerverifiedShow Answer

In a titration,the indicator is used to signal when the endpoint has been reached.

Correct AnswerverifiedShow Answer

Which combination below will be a buffer solution?

Correct AnswerverifiedShow Answer

Exactly 17.0 mL of a H₂SO₄ solution was required to neutralize 45.0 mL of 0.235 M NaOH.What was the concentration of the H₂SO₄ solution? GIVEN: H₂SO₄ (aq) + 2NaOH (aq) → 2H₂O (l) + Na₂SO₄ (aq)

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What is the concentration of H⁺ in solution given the [OH⁻] = 2.54 × 10^-⁴?

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What is the pH of a solution that has a H⁺ concentration equal to 1.76 × 10^-⁵ M?

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Ammonia (NH₃) ionizes in water to form a basic solution.What is the concentration of OH^- ions in a 0.75 M NH₃ solution?

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What is the concentration of H⁺ in a 0.121 M HCl solution?

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The titration of 25.00 mL a 0.125 M HClO₄ solution required 21.37 mL of KOH to reach the endpoint.What is the concentration of the KOH?

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The salt that forms due to neutralization of phosphoric acid by calcium hydroxide has the formula Ca₃P₂.

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