Chemistry - Chapter 14

Which of the following is NOT a property of acids?

Acids have a slippery feel.

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

All of 1, 2, and 3

Carboxylic acids can be found in

all of the above

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

Hydrofluoric acid

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

HNO3

Which of the following is NOT a property of bases?

Bases dissolve many metals.

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.

1 and 3 only

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

NH3

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

NaHCO3

The Arrhenius definition of an acid is:

produces H? in solution.

The Bronsted-Lowry definition of a base is:

a proton acceptor.

The Bronsted-Lowry definition of an acid is:

a proton donor.

Which of the following is NOT true?

The Arrhenius Model of acids and bases applies toward substances that are nonaqueous.

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

the H on the left.

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

H2S and OH-

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

H2O is an acid and OH- is its conjugate base.

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

H2O is a base and H3O+ is its conjugate acid.

What is the conjugate acid of OH??

H2O

What is the conjugate base of H2O?

OH?

A substance that acts as an acid or a base is called

amphoteric.

What are the products of a neutralization reaction?

water and salt

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

hydrogen gas

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?

H2SO4

A 25.0 ml sample of 0.105 M HCl was titrated with 31.5 ml of NaOH. What is the concentration of the NaOH?
w:

0.0833 M

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?
w:

0.186 M

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?
w:

0.311 M

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

Water always has some ions dissolved in it.

Which of the following acids is diprotic?

H2SO4

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

carbonic acid

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

hydrobromic acid

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

a weak acid.

What is the concentration of H? in 2.0 M acetic acid, HC2H3O2?
w:

< 2.0 M

What is the concentration of H? in 0.50 M hydroiodic acid?
w:

0.50 M

Which of the following is a weak base?

ammonia

Ammonia (NH3) ionizes in water to form a basic solution. What is the concentration of OH- ions in a
w:

< 0.75 M

Consider a 1.6 ? 10-3 M solution of HNO3. Which of the following statements is NOT true?
w:

This solution has a pH of 11.20.

Substances that can act both as an acid and as a base are called:

amphoteric.

What is the concentration of the hydronium ions in a neutral solution?
w:

1.0 ? 10-7 M

What is the concentration of the hydroxide ions in an acidic solution?
w:

< 1.0? 10-7 M

What is the concentration of the hydronium ions in an acidic solution?
w:

> 1.0 ? 10-7 M

What is the value of the ion product constant for water (Kw)?
w:

1.0 ? 10-14

What is the concentration of the hydroxide ion given that the concentration of the hydronium ion is
1.5 ? 10-5 M?
w:

6.7 ? 10-10 M

What is the concentration of hydronium ions in a solution given that the concentration of hydroxide ions is 2.31 ? 10-4 M?
w:

4.33 ? 10-11 M

Which solution below has the highest concentration of hydroxide ions?
w:

pH = 12.49

The pH of a solution is 5.00. Which of the following is TRUE about the solution?
w:

Its [H3O+] is 1.0 ? 10-5 M

In order for a solution to be acidic

[H3O+] > [OH-]

In order for a solution to be basic,

[H3O+] < [OH-]

In a solution that has a pH = 7.0,

[H3O+] = [OH-]

A solution at 25�C has a hydrogen ion concentration of 2.6 ? 10-5 M. Which of the following is TRUE?

[H3O+] > [OH-]

Which solution below is considered to have basic character?

pOH = 4

What is the pH of a solution that has a H? concentration equal to 1.76 ? 10-5 M?
w:

4.77

If the pH of an aqueous solution changed from 9.10 to 4.67, what happened to the hydronium ion concentration?
w:

It increased.

What is the pOH of a solution that has a OH- concentration equal to1.36 ? 10-10 M?
w:

9.89

What is the [H?] in a solution that has a pH of 3.35?
w:

4.5 ? 10-4 M

What is the [OH-] in a solution that has a pOH of 9.65?
w:

2.2 ? 10-10 M

Which of the following is TRUE of alkaloid compounds?

All of the above are true.

A buffer solution is all of the following EXCEPT:

a solution that regulates pH by the addition of a strong acid or base.

Which of the following statements are TRUE of buffer solutions?
1. A buffer solution can be made by mixing equal concentrations of
acetic acid and sodium acetate.
2. A buffer solution can be made by mixing equal concentrations of
hydrochloric acid and sod

1 and 3 only

Which combination below will be a buffer solution?

HC2H3O2 and NaC2H3O2

Which of the following contributes to acid rain?

The reaction of nonmetal oxides with water.

Acid rain legislation targeted the release of which compound by industry?

SO2