Question 1

Which of the following solutions did Arrhenius observe to be a good conductor of electricity?

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 2

What is the term for the process of an ionic compound dissolving in water and separating into positive and negative ions?

Accepted Answer

A) dissociation 
B) hydration 
C) ionization 
D) solvation 
E) none of the above 
A) dissociation 
B) hydration 
C) ionization 
D) solvation 
E) none of the above

Question 3

Which of the following indicators is yellow in an acidic solution and blue 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 4

An ammonia solution is 6.00 M and the density is 0.950 g/mL.What is the mass/mass percent concentration of NH₃ (17.04 g/mol)?

Accepted Answer

A) 0.0971% 
B) 0.108% 
C) 9.71% 
D) 10.2% 
E) 10.8% 
A) 0.0971% 
B) 0.108% 
C) 9.71% 
D) 10.2% 
E) 10.8%

Question 5

What is the molarity of a sulfuric acid solution if 30.00 mL of H₂SO₄ is required to neutralize 0.840 g of sodium hydrogen carbonate (84.01 g/mol)? H₂SO₄(aq)+ 2 NaHCO₃(aq)→ Na₂SO₄(aq)+ 2 H₂O(l)+ 2 CO₂(g)

Accepted Answer

A) 0.167 M 
B) 0.300 M 
C) 0.333 M 
D) 0.500 M 
E) 0.667 M 
A) 0.167 M 
B) 0.300 M 
C) 0.333 M 
D) 0.500 M 
E) 0.667 M

Question 6

Which of the following is a general property of an acidic solution?

Accepted Answer

A) tastes bitter 
B) feels slippery 
C) turns litmus paper blue 
D) neutralizes acids 
E) none of the above 
A) tastes bitter 
B) feels slippery 
C) turns litmus paper blue 
D) neutralizes acids 
E) none of the above

Question 7

What is the term for a substance that donates a proton in an acid-base reaction?

Accepted Answer

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

Question 8

If a 50.0 mL sample of ammonium hydroxide is titrated with 25.0 mL of 0.200 M nitric acid to a methyl red endpoint,what is the molarity of the base? NH₄OH(aq)+ HNO₃(aq)→ NH₄NO₃(aq)+ H₂O(l)

Accepted Answer

A) 0.100 M 
B) 0.150 M 
C) 0.200 M 
D) 0.300 M 
E) 0.400 M 
A) 0.100 M 
B) 0.150 M 
C) 0.200 M 
D) 0.300 M 
E) 0.400 M

Question 9

Which of the following is a general property of a basic solution?

Accepted Answer

A) tastes bitter 
B) feels slippery 
C) turns litmus paper blue 
D) neutralizes acids 
E) all of the above 
A) tastes bitter 
B) feels slippery 
C) turns litmus paper blue 
D) neutralizes acids 
E) all of the above

Question 10

Which of the following explains why distilled water is neutral?

Accepted Answer

A) Distilled water has no ions. 
B) Distilled water has no hydrogen ions. 
C) Distilled water has no hydroxide ions. 
D) The concentrations of hydrogen and hydroxide ions are equal. 
E) none of the above 
A) Distilled water has no ions. 
B) Distilled water has no hydrogen ions. 
C) Distilled water has no hydroxide ions. 
D) The concentrations of hydrogen and hydroxide ions are equal. 
E) none of the above

Question 11

What is the term for ions in aqueous solution that do not participate in a reaction,and do not appear in the net ionic equation?

Accepted Answer

A) electrolyte ions 
B) nonelectrolyte ions 
C) spectator ions 
D) zwitterions 
E) none of the above 
A) electrolyte ions 
B) nonelectrolyte ions 
C) spectator ions 
D) zwitterions 
E) none of the above

Question 12

Name the scientist who established the concept of ions in aqueous solutions.

Accepted Answer

A) Svante Arrhenius 
B) Johannes Brønsted 
C) Thomas Lowry 
D) Wilhelm Ostwald 
E) none of the above 
A) Svante Arrhenius 
B) Johannes Brønsted 
C) Thomas Lowry 
D) Wilhelm Ostwald 
E) none of the above

Question 13

What is the pH of an aqueous solution if the [H+] = 0.1 M?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 10 
E) 13 
A) 0 
B) 1 
C) 2 
D) 10 
E) 13

Question 14

Which of the following indicators is red in an acidic solution and yellow 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 15

Given an aqueous solution in which the [H+] = 2.0 x 10-5 M,what is the molar hydroxide ion concentration?

Accepted Answer

A) [OH-] = 2.0 x 10-9 M 
B) [OH-] = 2.0 x 10-10 M 
C) [OH-] = 5.0 x 10-8 M 
D) [OH-] = 5.0 x 10-9 M 
E) [OH-] = 5.0 x 10-10 M 
A) [OH-] = 2.0 x 10-9 M 
B) [OH-] = 2.0 x 10-10 M 
C) [OH-] = 5.0 x 10-8 M 
D) [OH-] = 5.0 x 10-9 M 
E) [OH-] = 5.0 x 10-10 M

Question 16

What is the difference in pH between acid rain and normal rain?

Accepted Answer

A) The pH of acid rain is below 1,and normal rain is about 5.5. 
B) The pH of acid rain is below 5,and normal rain is neutral. 
C) The pH of acid rain is below 5,and normal rain is about 5.5. 
D) The pH of acid rain is below 7,and normal rain is neutral. 
E) The pH of acid rain is below 7,and normal rain is about 5.5. 
A) The pH of acid rain is below 1,and normal rain is about 5.5. 
B) The pH of acid rain is below 5,and normal rain is neutral. 
C) The pH of acid rain is below 5,and normal rain is about 5.5. 
D) The pH of acid rain is below 7,and normal rain is neutral. 
E) The pH of acid rain is below 7,and normal rain is about 5.5.

Question 17

In the following reaction,which reactant is a Brønsted-Lowry acid? NaHCO₃(aq)+ NaH₂PO₄(aq)→ Na₂HPO₄(aq)+ H₂CO₃(aq)

Accepted Answer

A) NaHCO₃ 
B) NaH₂PO₄ 
C) Na₂HPO₄ 
D) H₂CO₃ 
E) none of the above 
A) NaHCO₃ 
B) NaH₂PO₄ 
C) Na₂HPO₄ 
D) H₂CO₃ 
E) none of the above

Question 18

If stomach digestive juice has a pH of 1,the solution is which of the following?

Accepted Answer

A) strongly acidic 
B) weakly acidic 
C) neutral 
D) weakly basic 
E) strongly basic 
A) strongly acidic 
B) weakly acidic 
C) neutral 
D) weakly basic 
E) strongly basic

Question 19

An acetic acid solution is 6.00 M and has a density of 1.04 g/mL.What is the mass/mass percent concentration of HC₂H₃O₂ (60.06 g/mol)?

Accepted Answer

A) 0.347% 
B) 0.375% 
C) 34.7% 
D) 36.0% 
E) 37.5% 
A) 0.347% 
B) 0.375% 
C) 34.7% 
D) 36.0% 
E) 37.5%

Question 20

What is the molarity of a acetic acid solution if 25.00 mL of HC₂H₃O₂ is required to neutralize 0.424 g of sodium carbonate (105.99 g/mol)? 2 HC₂H₃O₂(aq)+ Na₂CO₃(aq)→ 2 NaC₂H₃O₂ (aq)+ H₂O(l)+ CO₂(g)

Accepted Answer

A) 0.0800 M 
B) 0.100 M 
C) 0.160 M 
D) 0.200 M 
E) 0.320 M 
A) 0.0800 M 
B) 0.100 M 
C) 0.160 M 
D) 0.200 M 
E) 0.320 M

Exam 14: Acids and Bases

Which of the following solutions did Arrhenius observe to be a good conductor of electricity?

What is the term for the process of an ionic compound dissolving in water and separating into positive and negative ions?

Which of the following indicators is yellow in an acidic solution and blue in a basic solution?

An ammonia solution is 6.00 M and the density is 0.950 g/mL.What is the mass/mass percent concentration of NH₃ (17.04 g/mol)?

What is the molarity of a sulfuric acid solution if 30.00 mL of H₂SO₄ is required to neutralize 0.840 g of sodium hydrogen carbonate (84.01 g/mol)? H₂SO₄(aq)+ 2 NaHCO₃(aq)→ Na₂SO₄(aq)+ 2 H₂O(l)+ 2 CO₂(g)

Which of the following is a general property of an acidic solution?

What is the term for a substance that donates a proton in an acid-base reaction?

If a 50.0 mL sample of ammonium hydroxide is titrated with 25.0 mL of 0.200 M nitric acid to a methyl red endpoint,what is the molarity of the base? NH₄OH(aq)+ HNO₃(aq)→ NH₄NO₃(aq)+ H₂O(l)

Which of the following is a general property of a basic solution?

Which of the following explains why distilled water is neutral?

What is the term for ions in aqueous solution that do not participate in a reaction,and do not appear in the net ionic equation?

Name the scientist who established the concept of ions in aqueous solutions.

What is the pH of an aqueous solution if the [H+] = 0.1 M?

Which of the following indicators is red in an acidic solution and yellow in a basic solution?

Given an aqueous solution in which the [H+] = 2.0 x 10-5 M,what is the molar hydroxide ion concentration?

What is the difference in pH between acid rain and normal rain?

In the following reaction,which reactant is a Brønsted-Lowry acid? NaHCO₃(aq)+ NaH₂PO₄(aq)→ Na₂HPO₄(aq)+ H₂CO₃(aq)

If stomach digestive juice has a pH of 1,the solution is which of the following?

An acetic acid solution is 6.00 M and has a density of 1.04 g/mL.What is the mass/mass percent concentration of HC₂H₃O₂ (60.06 g/mol)?

What is the molarity of a acetic acid solution if 25.00 mL of HC₂H₃O₂ is required to neutralize 0.424 g of sodium carbonate (105.99 g/mol)? 2 HC₂H₃O₂(aq)+ Na₂CO₃(aq)→ 2 NaC₂H₃O₂ (aq)+ H₂O(l)+ CO₂(g)

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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