Deck 14: Acids and Bases

Question 1

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

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

Answer 1

Brønsted-Lowry acid

Question 2

What is the term for the process of a polar molecular compound dissolving in water and forming positive and negative ions?

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

Answer 2

ionization

Question 3

Which of the following expresses the molar concentration of the hydrogen ion on an exponential scale?

A)aH
B)bH
C)eH
D)pH
E)none of the above

Answer 3

pH

Question 4

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?

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

Question 5

What is the term for the stage in an acid-base titration when the indicator changes color?

A)color point
B)endpoint
C)indicator point
D)stoichiometric point
E)none of the above

Question 6

What is the term for a solution whose concentration has been established accurately,usually to three or four significant digits?

A)normal solution
B)reference solution
C)standard solution
D)stock solution
E)none of the above

Question 7

What is the term for the product of an acid-base reaction in addition to water?

A)buffer
B)electrolyte
C)nonelectrolyte
D)salt
E)none of the above

Question 8

A hydronium ion is a hydrogen ion bonded to which of the following?

A)hydrogen atom
B)hydroxide ion
C)hydrogen molecule
D)water molecule
E)none of the above

Question 9

What is the term used as a synonym for hydrogen ion acceptor?

A)amphiprotic
B)Arrhenius acid
C)Brønsted-Lowry acid
D)proton acceptor
E)none of the above

Question 10

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

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

Question 11

What is the term for the product of the molar hydrogen ion concentration times the molar hydroxide ion concentration in water?

A)autoionization constant of water,Ka
B)dissociation constant of water,Kd
C)ionization constant of water,Kw
D)solubility constant of water,Ksp
E)none of the above

Question 12

What is the term for a chemical equation that results from canceling spectator ions in a total ionic equation?

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

Question 13

What is the term for a substance capable of either donating or accepting a proton in an acid-base reaction?

A)amphiprotic
B)aprotic
C)nonprotic
D)semiprotic
E)none of the above

Question 14

What is the term used as a synonym for hydrogen ion donor?

A)amphiprotic
B)Arrhenius base
C)Brønsted-Lowry base
D)proton donor
E)none of the above

Question 15

What is the term for a solution that resists changes in pH when an acid or a base is added?

A)buffer
B)enzyme
C)nucleic acid
D)peptide
E)none of the above

Question 16

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

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

Question 17

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

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

Question 18

What is the term for a substance that releases hydrogen ions in water?

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

Question 19

What is the term for a substance that releases hydroxide ions in water?

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

Question 20

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

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

Question 21

Which of the following is a strong acid?

A)HCl(aq)(~ 100% ionized)
B)H₂SO₄(aq)(~ 100% ionized)
C)HNO₃(aq)(~ 100% ionized)
D)all of the above
E)none of the above

Question 22

If a vinegar sample has a pH of 5,the solution is which of the following?

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

Question 23

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

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

Question 24

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

A)tastes sour
B)feels slippery
C)turns litmus paper blue
D)pH greater than 7
E)none of the above

Question 25

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

A)NH₄C₂H₃O₂(aq)
B)HC₂H₃O₂(aq)
C)KC₂H₃O₂(aq)
D)all of the above
E)none of the above

Question 26

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

A)tastes sour
B)feels slippery
C)turns litmus paper red
D)pH less than 7
E)none of the above

Question 27

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

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

Question 28

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

A)tastes sour
B)turns litmus paper red
C)pH less than 7
D)neutralizes bases
E)none of the above

Question 29

If a drain cleaner has a pH of 14,the solution is which of the following?

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

Question 30

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

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

Question 31

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

A)HCl(aq)
B)HNO₃(aq)
C)H₂SO₄(aq)
D)all of the above
E)none of the above

Question 32

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

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

Question 33

Which of the following is a weak acid?

A)HCl(aq)(~ 100% ionized)
B)HNO₃(aq)(~ 100% ionized)
C)HC₂H₃O₂(aq)(~ 1% ionized)
D)all of the above
E)none of the above

Question 34

What is the term for the laboratory procedure of delivering a measured volume of solution through a buret?

A)conditioning
B)standardizing
C)transferring
D)titration
E)none of the above

Question 35

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

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

Question 36

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

A)Al(OH)3(s)
B)Ba(OH)2(aq)
C)RbOH(aq)
D)H₂O(l)
E)none of the above

Question 37

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

A)tastes sour
B)turns litmus paper red
C)pH less than 7
D)neutralizes bases
E)all of the above

Question 38

Which of the following is a strong acid?

A)HNO₂(aq)(~ 1% ionized)
B)H₂SO₃(aq)(~ 1% ionized)
C)H₃PO₄(aq)(~ 1% ionized)
D)all of the above
E)none of the above

Question 39

If a saliva specimen has a pH of 7,the solution is which of the following?

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

Question 40

If milk of magnesia has a pH of 10,the solution is which of the following?

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

Question 41

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

A)NaOH(aq)
B)Ca(OH)2(aq)
C)Al(OH)3(s)
D)all of the above
E)none of the above

Question 42

Which of the following is a strong base?

A)LiOH(aq)(~ 100% ionized)
B)NaOH(aq)(~ 100% ionized)
C)KOH(aq)(~ 100% ionized)
D)all of the above
E)none of the above

Question 43

In the following reaction,which reactant is a Brønsted-Lowry base? HCl(aq)+ KHS(aq)→ KCl(aq)+ H₂S(aq)

A)HCl
B)KHS
C)KCl
D)H₂S
E)none of the above

Question 44

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

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

Question 45

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

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

Question 46

In the following reaction,which reactant is a Brønsted-Lowry base? NaHS(aq)+ HCN(aq)→ NaCN(aq)+ H₂S(aq)

A)NaHS
B)HCN
C)NaCN
D)H₂S
E)none of the above

Question 47

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

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

Question 48

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

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

Question 49

Which of the following is a weak base?

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 50

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

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

Question 51

What acid and base are neutralized to give potassium nitrate salt?

A)HCl(aq)and KOH(aq)
B)HNO₃(aq)and KOH(aq)
C)HNO₃(aq)and KNO₃(aq)
D)HOH(aq)and KNO₃(aq)
E)none of the above

Question 52

What acid and base are neutralized to give lithium fluoride salt?

A)HCl(aq)and LiOH(aq)
B)HF(aq)and LiOH(aq)
C)HF(aq)and LiF(aq)
D)HOH(aq)and LiF(aq)
E)none of the above

Question 53

In the following reaction,which reactant is a Brønsted-Lowry acid? HCl(aq)+ KHS(aq)KCl(aq)+ H₂S(aq)

A)HCl
B)KHS
C)KCl
D)H₂S
E)none of the above

Question 54

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

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

Question 55

Which of the following is a weak base?

A)NH₄OH(aq)(~ 1% ionized)
B)KOH(aq)(~ 100% ionized)
C)LiOH(aq)(~ 100% ionized)
D)all of the above
E)none of the above

Question 56

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

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

Question 57

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

A)KCl(aq)
B)KOH(aq)
C)KNO₃(aq)
D)all of the above
E)none of the above

Question 58

In the following reaction,which reactant is a Brønsted-Lowry acid? NaHS(aq)+ HCN(aq)→ NaCN(aq)+ H₂S(aq)

A)NaHS
B)HCN
C)NaCN
D)H₂S
E)none of the above

Question 59

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

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 60

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

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

Question 61

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)?

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

Question 62

If 20.0 mL of 0.200 M H₂SO₄ is titrated with 0.100 M NaOH,what volume of sodium hydroxide is required to neutralize the acid? H₂SO₄(aq)+ 2 NaOH(aq)→ Na₂SO₄(aq)+ 2 H₂O(l)

A)10.0 mL
B)20.0 mL
C)40.0 mL
D)60.0 mL
E)80.0 mL

Question 63

If a 50.0 mL sample of ammonium hydroxide is titrated with 25.0 mL of 0.200 M sulfuric acid to a methyl red endpoint,what is the molarity of the base? 2 NH₄OH(aq)+ H₂SO₄(aq)→ (NH₄)2SO₄(aq)+ 2 H₂O(l)

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

Question 64

What is the color of phenolphthalein indicator at pH 7?

A)red
B)blue
C)pink
D)colorless
E)none of the above

Question 65

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)

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

Question 66

Which of the following indicators is orange at pH 5?

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

Question 67

Which of the following indicators is green at pH 7?

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

Question 68

If 20.0 mL of 0.500 M KOH is titrated with 0.250 M HNO₃,what volume of nitric acid is required to neutralize the base? HNO₃(aq)+ KOH(aq)→ KNO₃(aq)+ H₂O(l)

A)10.0 mL
B)20.0 mL
C)25.0 mL
D)40.0 mL
E)50.0 mL

Question 69

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)

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

Question 70

If 10.0 mL of 0.100 M HCl is titrated with 0.200 M NaOH,what volume of sodium hydroxide solution is required to neutralize the acid? HCl(aq)+ NaOH(aq)→ NaCl(aq)+ H₂O(l)

A)5.00 mL
B)10.0 mL
C)20.0 mL
D)40.0 mL
E)80.0 mL

Question 71

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

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

Question 72

If 25.0 mL of 0.100 M Ca(OH)2 is titrated with 0.200 M HNO₃,what volume of nitric acid is required to neutralize the base? 2 HNO₃(aq)+ Ca(OH)2(aq)→ 2 Ca(NO₃)2(aq)+ 2 H₂O(l)

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

Question 73

If 30.0 mL of 0.100 M Ca(OH)2 is titrated with 0.150 M HC₂H₃O₂,what volume of acetic acid is required to neutralize the base? 2 HC₂H₃O₂(aq)+ Ca(OH)2(aq)→ Ca(C₂H₃O₂)2(aq)+ 2 H₂O(l)

A)10.0 mL
B)22.5 mL
C)20.0 mL
D)40.0 mL
E)45.0 mL

Question 74

If a 25.0 mL sample of sulfuric acid is titrated with 50.0 mL of 0.200 M potassium hydroxide to a phenolphthalein endpoint,what is the molarity of the acid? H₂SO₄(aq)+ 2 KOH(aq)→ k₂SO₄(aq)+ 2 H₂O(l)

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

Question 75

What is the color of phenolphthalein indicator in pure water?

A)red
B)blue
C)pink
D)colorless
E)none of the above

Question 76

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

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

Question 77

What is the color of phenolphthalein indicator at pH 10?

A)red
B)blue
C)pink
D)colorless
E)none of the above

Question 78

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

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

Question 79

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

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

Question 80

Which of the following indicators is pink at pH 9?

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