Question 1

Steelmaking plants and electric power plants that burn low-grade coal produce which of the following acids in acid rain?

Accepted Answer

A) carbonic acid 
B) nitric acid 
C) sulfuric acid 
D) all of the above 
E) none of the above 
A) carbonic acid 
B) nitric acid 
C) sulfuric acid 
D) all of the above 
E) none of the above

Question 2

If 25.0 mL of 0.100 M HCl is titrated with 0.150 M Ba(OH)2,what volume of barium hydroxide is required to neutralize the acid? 2 HCl(aq)+ Ba(OH)2(aq)→ BaCl₂(aq)+ 2 H₂O(l)

Accepted Answer

A) 8.33 mL 
B) 16.7 mL 
C) 18.8 mL 
D) 33.3 mL 
E) 37.5 mL 
A) 8.33 mL 
B) 16.7 mL 
C) 18.8 mL 
D) 33.3 mL 
E) 37.5 mL

Question 3

Which of the following solutions did Arrhenius theorize existed primarily as ions in solution?

Accepted Answer

A) aqueous salt solution 
B) aqueous sugar solution 
C) aqueous alcohol solution 
D) all of the above 
E) none of the above 
A) aqueous salt solution 
B) aqueous sugar solution 
C) aqueous alcohol solution 
D) all of the above 
E) none of the above

Question 4

Which of the following in aqueous solution is a weak electrolyte?

Accepted Answer

A) H₂CO₃(aq) 
B) LiOH(aq) 
C) NH₄Cl(aq) 
D) all of the above 
E) none of the above 
A) H₂CO₃(aq) 
B) LiOH(aq) 
C) NH₄Cl(aq) 
D) all of the above 
E) none of the above

Question 5

What is the pH of an aqueous solution whose hydrogen ion concentration is 1 M?

Accepted Answer

A) -1 
B) 0 
C) 1 
D) 10 
E) none of the above 
A) -1 
B) 0 
C) 1 
D) 10 
E) none of the above

Question 6

Acetic acid is a weak acid,ammonium hydroxide is a weak base,and ammonium acetate is a soluble salt.Which of the following is the net ionic equation for the reaction? HC₂H₃O₂(aq)+ NH₄OH (aq)→ NH₄C₂H₃O₂(aq)+ H₂O(l)

Accepted Answer

A) H+(aq)+ OH-(aq)→ H₂O(l) 
B) C₂H₃O₂-(aq)+ NH₄+(aq)→ NH₄C₂H₃O₂(aq) 
C) H+(aq)+ Ba(OH)2(aq)→ NH₄+(aq)+ H₂O(l) 
D) HC₂H₃O₂(aq)+ OH-(aq)→ C₂H₃O₂-(aq)+ H₂O(l) 
E) none of the above 
A) H+(aq)+ OH-(aq)→ H₂O(l) 
B) C₂H₃O₂-(aq)+ NH₄+(aq)→ NH₄C₂H₃O₂(aq) 
C) H+(aq)+ Ba(OH)2(aq)→ NH₄+(aq)+ H₂O(l) 
D) HC₂H₃O₂(aq)+ OH-(aq)→ C₂H₃O₂-(aq)+ H₂O(l) 
E) none of the above

Question 7

Which of the following is an example of an Arrhenius base?

Accepted Answer

A) HNO₃(aq) 
B) H₂CO₃(aq) 
C) H₃PO₄(aq) 
D) H₂O(l) 
E) none of the above 
A) HNO₃(aq) 
B) H₂CO₃(aq) 
C) H₃PO₄(aq) 
D) H₂O(l) 
E) none of the above

Question 8

What acid and base are neutralized to give sodium bromide salt?

Accepted Answer

A) HCl(aq)and NaOH(aq) 
B) HBr(aq)and NaOH(aq) 
C) HBr(aq)and NaBr(aq) 
D) HOH(aq)and NaBr(aq) 
E) none of the above 
A) HCl(aq)and NaOH(aq) 
B) HBr(aq)and NaOH(aq) 
C) HBr(aq)and NaBr(aq) 
D) HOH(aq)and NaBr(aq) 
E) none of the above

Question 9

Which of the following indicators is colorless in an acidic solution and pink in a basic solution?

Accepted Answer

A) methyl red 
B) bromthymol blue 
C) phenolphthalein 
D) all of the above 
E) none of the above 
A) methyl red 
B) bromthymol blue 
C) phenolphthalein 
D) all of the above 
E) none of the above

Question 10

Which of the following aqueous solutions is slightly ionized?

Accepted Answer

A) weak acid 
B) weak base 
C) very slightly soluble salt 
D) all of the above 
E) none of the above 
A) weak acid 
B) weak base 
C) very slightly soluble salt 
D) all of the above 
E) none of the above

Question 11

What is the term for a substance that changes color according to the pH of the solution?

Accepted Answer

A) acid-base indicator 
B) acid-base signal 
C) Arrhenius acid 
D) Brønsted-Lowry acid 
E) none of the above 
A) acid-base indicator 
B) acid-base signal 
C) Arrhenius acid 
D) Brønsted-Lowry acid 
E) none of the above

Question 12

If a light bulb in a conductivity apparatus glows dimly when testing a solution,which of the following must be true?

Accepted Answer

A) The solution is highly ionized. 
B) The solution is slightly ionized. 
C) The solution is highly reactive. 
D) The solution is slightly reactive. 
E) none of the above 
A) The solution is highly ionized. 
B) The solution is slightly ionized. 
C) The solution is highly reactive. 
D) The solution is slightly reactive. 
E) none of the above

Question 13

Which of the following aqueous solutions is highly ionized?

Accepted Answer

A) strong acid 
B) strong base 
C) soluble salt 
D) all of the above 
E) none of the above 
A) strong acid 
B) strong base 
C) soluble salt 
D) all of the above 
E) none of the above

Question 14

Which of the following is a weak base?

Accepted Answer

A) Ba(OH)2(aq)(~ 100% ionized) 
B) Ca(OH)2(aq)(~ 100% ionized) 
C) Sr(OH)2(aq)(~ 100% ionized) 
D) all of the above 
E) none of the above 
A) Ba(OH)2(aq)(~ 100% ionized) 
B) Ca(OH)2(aq)(~ 100% ionized) 
C) Sr(OH)2(aq)(~ 100% ionized) 
D) all of the above 
E) none of the above

Question 15

If 1.020 g of KHC8H₄O₄ (204.23 g/mol)is completely neutralized with 0.200 M KOH,what volume of potassium hydroxide is required? KHC8H₄O₄(aq)+ KOH(aq)→ k₂C8H₄O₄(aq)+ 2 H₂O(l)

Accepted Answer

A) 12.5 mL 
B) 20.0 mL 
C) 25.0 mL 
D) 40.0 mL 
E) 50.0 mL 
A) 12.5 mL 
B) 20.0 mL 
C) 25.0 mL 
D) 40.0 mL 
E) 50.0 mL

Question 16

What is the term for a chemical equation that shows all ionized substances in solution as ions and slightly ionized substances as nonionized?

Accepted Answer

A) dissociation equation 
B) ionization equation 
C) net ionic equation 
D) total ionic equation 
E) none of the above 
A) dissociation equation 
B) ionization equation 
C) net ionic equation 
D) total ionic equation 
E) none of the above

Question 17

Which of the following indicators is green at pH 7?

Accepted Answer

A) methyl red 
B) bromthymol blue 
C) phenolphthalein 
D) all of the above 
E) none of the above 
A) methyl red 
B) bromthymol blue 
C) phenolphthalein 
D) all of the above 
E) none of the above

Question 18

In the following reaction,which reactant is a Brønsted-Lowry base? KC₂H₃O₂(aq)+ HCN(aq)→ HC₂H₃O₂(aq)+ KCN(aq)

Accepted Answer

A) KC₂H₃O₂ 
B) HCN 
C) HC₂H₃O₂ 
D) KCN 
E) none of the above 
A) KC₂H₃O₂ 
B) HCN 
C) HC₂H₃O₂ 
D) KCN 
E) none of the above

Question 19

Which of the following indicators is pink at pH 9?

Accepted Answer

A) methyl red 
B) bromthymol blue 
C) phenolphthalein 
D) all of the above 
E) none of the above 
A) methyl red 
B) bromthymol blue 
C) phenolphthalein 
D) all of the above 
E) none of the above

Question 20

What is the term for a solution that is a good conductor of electricity?

Accepted Answer

A) aqueous electrolyte 
B) nonelectrolyte 
C) strong electrolyte 
D) weak electrolyte 
E) none of the above 
A) aqueous electrolyte 
B) nonelectrolyte 
C) strong electrolyte 
D) weak electrolyte 
E) none of the above

Exam 14: Acids and Bases

Steelmaking plants and electric power plants that burn low-grade coal produce which of the following acids in acid rain?

If 25.0 mL of 0.100 M HCl is titrated with 0.150 M Ba(OH)2,what volume of barium hydroxide is required to neutralize the acid? 2 HCl(aq)+ Ba(OH)2(aq)→ BaCl₂(aq)+ 2 H₂O(l)

Which of the following solutions did Arrhenius theorize existed primarily as ions in solution?

Which of the following in aqueous solution is a weak electrolyte?

What is the pH of an aqueous solution whose hydrogen ion concentration is 1 M?

Acetic acid is a weak acid,ammonium hydroxide is a weak base,and ammonium acetate is a soluble salt.Which of the following is the net ionic equation for the reaction? HC₂H₃O₂(aq)+ NH₄OH (aq)→ NH₄C₂H₃O₂(aq)+ H₂O(l)

Which of the following is an example of an Arrhenius base?

What acid and base are neutralized to give sodium bromide salt?

Which of the following indicators is colorless in an acidic solution and pink in a basic solution?

Which of the following aqueous solutions is slightly ionized?

What is the term for a substance that changes color according to the pH of the solution?

If a light bulb in a conductivity apparatus glows dimly when testing a solution,which of the following must be true?

Which of the following aqueous solutions is highly ionized?

Which of the following is a weak base?

If 1.020 g of KHC8H₄O₄ (204.23 g/mol)is completely neutralized with 0.200 M KOH,what volume of potassium hydroxide is required? KHC8H₄O₄(aq)+ KOH(aq)→ k₂C8H₄O₄(aq)+ 2 H₂O(l)

What is the term for a chemical equation that shows all ionized substances in solution as ions and slightly ionized substances as nonionized?

Which of the following indicators is green at pH 7?

In the following reaction,which reactant is a Brønsted-Lowry base? KC₂H₃O₂(aq)+ HCN(aq)→ HC₂H₃O₂(aq)+ KCN(aq)

Which of the following indicators is pink at pH 9?

What is the term for a solution that is a good conductor of electricity?

Introduction to Chemistry

The Metric System

Matter and Energy

Models of the Atom

The Periodic Table

Language of Chemistry

Chemical Reactions

The Mole Concept

Chemical Equation Calculations

Gases

Liquids and Solids

Chemical Bonding

Solutions

Advanced Problem Solving

Chemical Equilibrium

Oxidation and Reduction

Nuclear Chemistry

Organic Chemistry

Biochemistry

Interlude: Prerequisite Science Skills

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