Question 1

Which common substance would have a pH less than 7?

Accepted Answer

A)  milk of magnesia 
B)  wine 
C)  borax solution 
D)  bleach 
A)  milk of magnesia 
B)  wine 
C)  borax solution 
D)  bleach

Question 2

Identify the acid in the following reaction, NH3(g) + H2O( l)$\rightarrow$ NH4+(aq) + OH-(aq)?

Accepted Answer

A)  OH- 
B)  NH4+ 
C)  H2O 
D)  NH3 
A)  OH- 
B)  NH4+ 
C)  H2O 
D)  NH3

Question 3

A base is

Accepted Answer

A)  an OH- ion donor 
B)  a hydrogen ion donor 
C)  a substance like magnesium hydroxide, Mg(OH)2 
D)  both a and c 
A)  an OH- ion donor 
B)  a hydrogen ion donor 
C)  a substance like magnesium hydroxide, Mg(OH)2 
D)  both a and c

Question 4

Why is pure water neutral?

Accepted Answer

A)  pure water has no H+ ions and no OH- ions 
B)  pure water has equal numbers of H+ ions and OH- ions 
C)  pure water has no dissolved carbon dioxide 
D)  the pH of pure water at 25$\degree$is 0 
A)  pure water has no H+ ions and no OH- ions 
B)  pure water has equal numbers of H+ ions and OH- ions 
C)  pure water has no dissolved carbon dioxide 
D)  the pH of pure water at 25$\degree$is 0

Question 5

When H2SO3 dissolves in water, what are the solute particles in the solution?

Accepted Answer

A)  H, S, O 
B)  H1+, S1+ and O2- 
C)  H1+, HSO3- and SO32- 
D)  H21+ and SO32- 
A)  H, S, O 
B)  H1+, S1+ and O2- 
C)  H1+, HSO3- and SO32- 
D)  H21+ and SO32-

Question 6

Chemical buffering systems

Accepted Answer

A)  maintain constant pH 
B)  consist of a conjugate acid-base pair 
C)  absorb added H+ or OH- ions 
D)  do all of the above 
A)  maintain constant pH 
B)  consist of a conjugate acid-base pair 
C)  absorb added H+ or OH- ions 
D)  do all of the above

Question 7

If 3 moles of a substance are dissolved in 500 mL (0.5 L) of solution, the molarity of this solution is

Accepted Answer

A)  3 M 
B)  1.5 M 
C)  3.5 M 
D)  6 M 
A)  3 M 
B)  1.5 M 
C)  3.5 M 
D)  6 M

Question 8

What carries the electrical current in an aqueous NaCl solution?

Accepted Answer

A)  electrons 
B)  ions 
C)  the solvent - water 
D)  none of the above 
A)  electrons 
B)  ions 
C)  the solvent - water 
D)  none of the above

Question 9

The symbol, M, related to concentration of solution, refers to

Accepted Answer

A)  much meaning a very concentrated solution 
B)  molal concentration 
C)  moles of solute dissolved in a liter of solution 
D)  mixed meaning the solution has been stirred well 
A)  much meaning a very concentrated solution 
B)  molal concentration 
C)  moles of solute dissolved in a liter of solution 
D)  mixed meaning the solution has been stirred well

Question 10

Which of the following is a property of bases?

Accepted Answer

A)  feel slippery to the touch 
B)  have pH below 7 
C)  turn blue litmus red 
D)  neutralize substances like NaOH 
A)  feel slippery to the touch 
B)  have pH below 7 
C)  turn blue litmus red 
D)  neutralize substances like NaOH

Question 11

Which of the following is true about a solution with pH = 8?

Accepted Answer

A)  the solution is basic 
B)  the H+ concentration equals 0.00000001 M 
C)  the OH- concentration > H+ concentration 
D)  all of these 
A)  the solution is basic 
B)  the H+ concentration equals 0.00000001 M 
C)  the OH- concentration > H+ concentration 
D)  all of these

Question 12

What is the molarity of a solution when 15.0 g of NaCl is dissolved to a final volume of 500 mL with water?

Accepted Answer

A)  0.153 M 
B)  117 M 
C)  0.0300 M 
D)  30.0 M 
A)  0.153 M 
B)  117 M 
C)  0.0300 M 
D)  30.0 M

Question 13

In an acidic solution,

Accepted Answer

A)  [H3O+] is greater than [OH-] 
B)  [H3O+] equals [OH-] 
C)  [OH-] is greater than [H3O+] 
D)  none of these 
A)  [H3O+] is greater than [OH-] 
B)  [H3O+] equals [OH-] 
C)  [OH-] is greater than [H3O+] 
D)  none of these

Question 14

What is the pH for a solution with hydrogen ion molarity of 0.01?

Accepted Answer

A)  -2 
B)  2 
C)  100 
D)  10-2 
A)  -2 
B)  2 
C)  100 
D)  10-2

Which common substance would have a pH less than 7?

Identify the acid in the following reaction, NH₃(g) + H₂O( l) $\rightarrow$ NH₄⁺(aq) + OH^-(aq)?

A base is

Why is pure water neutral?

When H₂SO₃ dissolves in water, what are the solute particles in the solution?

Chemical buffering systems

If 3 moles of a substance are dissolved in 500 mL (0.5 L) of solution, the molarity of this solution is

What carries the electrical current in an aqueous NaCl solution?

The symbol, M, related to concentration of solution, refers to

Which of the following is a property of bases?

Which of the following is true about a solution with pH = 8?

What is the molarity of a solution when 15.0 g of NaCl is dissolved to a final volume of 500 mL with water?

In an acidic solution,

What is the pH for a solution with hydrogen ion molarity of 0.01?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Oxidation-Reduction Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Filters

Exam 9: Acid-Base Reactions

Which common substance would have a pH less than 7?

Identify the acid in the following reaction, NH3(g) + H2O( l) →\rightarrow→ NH4+(aq) + OH-(aq)?

A base is

Why is pure water neutral?

When H2SO3 dissolves in water, what are the solute particles in the solution?

Chemical buffering systems

If 3 moles of a substance are dissolved in 500 mL (0.5 L) of solution, the molarity of this solution is

What carries the electrical current in an aqueous NaCl solution?

The symbol, M, related to concentration of solution, refers to

Which of the following is a property of bases?

Which of the following is true about a solution with pH = 8?

What is the molarity of a solution when 15.0 g of NaCl is dissolved to a final volume of 500 mL with water?

In an acidic solution,

What is the pH for a solution with hydrogen ion molarity of 0.01?

Living in a World of Chemistry

The Chemical View of Matter

Atoms and the Periodic Table

The Air We Breathe

Chemical Bonding and States of Matter

Carbon Dioxide and the Greenhouse Effect

Chlorofluorocarbons and the Ozone Layer

Chemical Reactivity: Chemicals in Action

Oxidation-Reduction Reactions

Water, Water Everywhere but Not a Drop to Drink

Energy and Hydrocarbons

Nuclear Changes and Nuclear Power

Organic Chemicals and Polymers

The Chemistry of Life

Nutrition: the Basis of Healthy Living

Chemistry and Medicine

The Chemistry of Useful Materials

Filters

Identify the acid in the following reaction, NH₃(g) + H₂O( l) $\rightarrow$ NH₄⁺(aq) + OH^-(aq)?

When H₂SO₃ dissolves in water, what are the solute particles in the solution?