Deck 14: Acids and Bases

Question 1

The main component of vinegar is acetic acid.

Answer 1

True

Question 2

Acids have a bitter taste.

Answer 2

False

Question 3

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

Answer 3

False

Question 4

H⁺ is called the hydronium ion.

Question 5

The sour taste of bases warns humans against eating poisonous alkaloids found in some plants.

Question 6

NH₄⁺ and NH₃ are considered a conjugate acid-base conjugate pair.

Question 7

The conjugate base to HSO₄^- is SO₄^2-.

Question 8

H₂SO₃ and H₂SO₄ are considered a conjugate acid-base pair.

Question 9

Bases feel slippery.

Question 10

The main component of stomach acid is sulfuric acid.

Question 11

The products of a neutralization reaction are carbon dioxide and water.

Question 12

Bases feel slippery because they react with oils on your skin to form soap-like substances.

Question 13

A Bronsted-Lowry acid is a proton donor.

Question 14

A conjugate acid-base pair are two substances related to each other by the transfer of a proton.

Question 15

Sodium hydroxide is often used in the manufacturing of soap.

Question 16

An Arrhenius base is a proton acceptor.

Question 17

When a metal reacts with an acid it produces salt and water.

Question 18

Bases have a bitter taste.

Question 19

Acids produce H⁺ ions in solution.

Question 20

Acids turn litmus paper blue.

Question 21

A solution that has a pH of 8.5 is considered a weak base.

Question 22

Water always acts as an acid in reactions.

Question 23

A weak acid is a dilute acid that is not very powerful.

Question 24

The equation HCl (aq)+ H₂O (l)↔ H₃O⁺ (aq)+ Cl^- (aq)properly depicts the behavior of hydrochloric acid in water.

Question 25

A solution of pH 2 contains ten times more H₃O⁺ than a solution of pH 3.

Question 26

A solution with a concentration of 0.000 000 1 M HCl would be an acidic solution.

Question 27

Aluminum is one of the few metals that dissolves in a strong base.

Question 28

A strong acid must also be a strong electrolyte.

Question 29

The ion product constant for water (K_w)is best stated as K_w = [H₂O] [H⁺].

Question 30

A 1.0 M [H₃O⁺] solution of a strong acid would have a pH equal to zero.

Question 31

A 100 mL sample of 4.0 M H₂SO₄ could be neutralized by 100 mL of 4.0 M NH₃.

Question 32

The pH of a 0.0001 M NaOH solution is 4.

Question 33

The pH of 0.001 M HCl is 3.0.

Question 34

In general,the stronger the acid,the weaker is its conjugate base.

Question 35

A pH of 7 is equivalent to a pOH of 7.

Question 36

A strong acid is one that is very concentrated.

Question 37

Since diprotic acids such as H₂CO₃ have two ionizable protons,they will always behave as strong acids compared to monoprotic acids.

Question 38

A neutral solution does not contain any H⁺ or OH⁻.

Question 39

A strong acid is one that completely dissociates into ions in solution.

Question 40

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

Question 41

Which among the following acids is commonly used for etching and frosting glass?

A)hydrochloric acid
B)nitric acid
C)hydrofluoric acid
D)hydrobromic acid
E)All of the above are used.

Question 42

The Bronsted-Lowry definition of an acid is:

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

Question 43

The Arrhenius definition of an acid is:

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

Question 44

Which of the following acids is commonly used for manufacturing fertilizer?

A)HCl
B)HN
C)HF
D)HBr
E)all of the above

Question 45

Which of the following common bases is commonly used for manufacturing fertilizer?

A)NH₃
B)NaHCO₃
C)KOH
D)NaOH
E)all of the above

Question 46

A buffer resists a change in pH by being able to react with an acid or a base.

Question 47

The burning of fossil fuels produces nitrogen oxides and sulfur oxides which can react to form acid rain (nitric and sulfuric acids).

Question 48

What is the conjugate acid of OH⁻?

A)
B)
O
C)NaOH
D)OH⁻
E)none of the above

Question 49

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

Question 50

Which of the following is NOT a property of acids?

A)Acids have a slippery feel.
B)Acids have a sour taste.
C)Acids turn litmus paper red.
D)Acids dissolve many metals.
E)All of the above are properties of acids.

Question 51

Which of the following statements about acids are TRUE?
1.An acid is used in car batteries.
2.A component of vinegar is an acid.
3.Acids are used for cleaning metals.

A)1 and 2 only
B)2 and 3 only
C)1 and 3 only
D)All of 1,2,and 3
E)Neither 1,2,or 3

Question 52

A simple buffer can be prepared by mixing significant amounts of a weak acid and its conjugate base.

Question 53

Which of the following statements about a base are TRUE?
1.Bases are used in the manufacturing of soap.
2.Bases have a sour taste.
3.Fertilizer manufacture and cotton processing use bases.

A)1 and 2 only
B)1 and 3 only
C)2 and 3 only
D)All of 1,2,and 3
E)Neither 1,2,or 3

Question 54

Rain is naturally somewhat acidic because of atmospheric carbon dioxide.

Question 55

In examining the formula for acetic acid,HC₂H₃O₂,the ionizable hydrogen atom(s)is/are:

A)the H on the left.
B)one of the H's on the right-side.
C)all of the H's on the right-side.
D)all four H's.
E)none of the above.

Question 56

Carboxylic acids can be found in:

A)grapes.
B)apples.
C)lemons.
D)all of the above
E)none of these

Question 57

Which of the following is NOT true?

A)The Bronsted-Lowry Model applies to a wider range of acid-base phenomena than does the Arrhenius Model.
B)The Arrhenius Model of acids and bases was developed before the Bronsted-Lowry Model.
C)The Bronsted-Lowry Model can apply to bases that do not contain hydroxide ions.
D)The Arrhenius Model of acids and bases applies toward substances that are nonaqueous.
E)none of the above

Question 58

Which of the following is the active ingredient of baking soda?

A)NH₃
B)NaHCO₃
C)KOH
D)NaOH
E)none of the above

Question 59

The Bronsted-Lowry definition of a base is:

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

Question 60

Which of the following is NOT a property of bases?

A)Bases have a slippery feel.
B)Bases have a bitter taste.
C)Bases turn litmus paper blue.
D)Bases dissolve many metals.
E)All of the above are properties of bases.

Question 61

Which of the following acids is a monoprotic,strong acid?

A)sulfuric acid
B)phosphoric acid
C)hydrobromic acid
D)carbonic acid
E)none of the above

Question 62

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)

A)5.63 M
B)0.622 M
C)0.00529 M
D)0.311 M
E)none of the above

Question 63

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?

A)H₂S
B)H₂SO₄
C)HCl
D)Na₂SO₄
E)none of the above

Question 64

What is the conjugate base of
O?

A)
B)

C)NaOH
D)OH⁻
E)none of the above

Question 65

In the following reaction: NH₄⁺ (aq)+ H₂O (aq)→ NH₃ (aq)+ H₃O⁺ (aq)

A)NH₄⁺ is an acid and H₂O is its conjugate base.
B)H₂O is a base and NH₃ is its conjugate acid.
C)NH₄⁺ is an acid and H₃O⁺ is its conjugate base.
D)H₂O is a base and H₃O⁺ is its conjugate acid.
E)NH₄⁺ is a base and H₂O is its conjugate acid.

Question 66

In which solution is the [H₃O⁺] less than 0.250 M?

A)0.250 M HC₂H₃O₂ (aq)
B)0.250 M HF (aq)
C)0.250 M HCO₂ (aq)
D)all of these
E)none of these

Question 67

Pure water cannot conduct electricity so why do we have to be careful with electrical appliances near water?

A)OSHA regulations
B)Water can be broken down by electricity.
C)Water always has some ions dissolved in it.
D)Water dissociates fully into its ions.
E)none of the above

Question 68

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

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

Question 69

When an acid reacts with a metal,what is one of the usual products?

A)water
B)salt
C)carbon dioxide
D)hydrogen gas
E)none of the above

Question 70

Which of the following is NOT an acid-base conjugate pair?

A)H₂CO₃ and HCO₃^-
B)H₂O and OH^-
C)H₂S and OH^-
D)NH₄⁺ and NH₃
E)none of the above

Question 71

Which of the following acids is diprotic?

A)HCl
B)HN
C)HI
D)

E)none of the above

Question 72

Which of the following acids is a diprotic,weak acid?

A)sulfuric acid
B)phosphoric acid
C)hydrobromic acid
D)carbonic acid
E)none of the above

Question 73

In the following reaction:
HCO₃^- (aq)+ H₂O (aq)→ H₂CO₃ (aq)+ OH^- (aq)

A)HCO₃^- is an acid and H₂CO₃ is its conjugate base.
B)H₂O is an acid and OH^- is its conjugate base.
C)HCO₃^- is an acid and OH^- is its conjugate base.
D)H₂O is an acid and H₂CO₃ is its conjugate base.
E)H₂O is an acid and HCO₃^- is its conjugate base.

Question 74

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

A)0.0833 M
B)0.132 M
C)0.105 M
D)0.075 M
E)none of the above

Question 75

What are the products of a neutralization reaction?

A)salt and carbon dioxide
B)carbon dioxide and water
C)water and salt
D)oil and water
E)none of the above

Question 76

A substance that acts as an acid OR a base is called:

A)isoprotic.
B)a salt.
C)amphoteric.
D)hydrophillic.
E)none of the above

Question 77

A neutralization reaction between KOH (aq)and H₂SO₄ (aq)would give which two products?

A)H₂O (l)and H₂S (g)
B)H₂O (l)and KSO₄ (aq)
C)H₂O (l)and K₂SO₄ (aq)
D)SO₂ (g)and KH₂ (g)
E)none of the above

Question 78

A 35.0 mL sample of 0.225 M HBr was titrated with 42.3 mL of KOH.What is the concentration of the KOH?

A)0.157 M
B)0.303 M
C)0.272 M
D)0.186 M
E)none of the above

Question 79

Which of the following is a weak base?

A)calcium hydroxide
B)sodium fluoride
C)potassium hydroxide
D)ammonia
E)none of the above

Question 80

Which of the following statements about water are TRUE?

A)Water can act as an acid.
B)Water can act as a base.
C)The conjugate base of water is OH^-.
D)The conjugate acid of water is H₃O⁺.
E)All of the above are true.