Chapter 10

Name each of the following acids or bases: HBrO2

Bromous acid

Name each of the following acids or bases: Ca(OH)2

Calcium Hydroxide

Name each of the following acids or bases: H2CO3

Carbonic Acid

Identify the reactant that is a Brønsted-Lowry acid and the reactant that is a Brønsted-Lowry base in each of the following: H2CO3(aq)+H2O(l)⇌H3O+(aq)+HCO3−(aq)

H2CO3 is the acid (proton donor); H2O is the base (proton acceptor)

Identify the conjugate acid-base pairs in each of the following equations: HI(aq)+OH−(aq)→I−(aq)+H2O(l)

H2O/OH− HI/I−

Write the formula of the conjugate base for H3PO4.

H2PO4−

Which is the weaker acid?

H2S

Identify the reactant that is a Brønsted-Lowry acid and the reactant that is a Brønsted-Lowry base in each of the following: H2SO4(aq)+H2O(l)→H3O+(aq)+HSO4−(aq)

H2SO4 is the acid (proton donor); H2O is the base (proton acceptor).

Identify the conjugate acid-base pairs in each of the following equations: HNO2(aq)+HS−(aq)⇌NO−2(aq)+H2S(g)

HNO2/NO−2 H2S/HS−

Write the formula of the conjugate base for H2S.

HS−

Name each of the following acids or bases: HNO3

Nitric acid

Name each of the following acids or bases: H2SO3

Sulfurous Acid

In a basic solution, how does the concentration of H3O+ compare to the concentration of OH−?

[H3O+]<[OH−]

Are each of the following examples acidic, basic, or neutral? cola, pH2.5

acidic

Are each of the following examples acidic, basic, or neutral? rain, pH5.2

acidic

Are each of the following examples acidic, basic, or neutral? tea, pH3.8

acidic

Are each of the following examples acidic, basic, or neutral? photo developer, pH12.0

basic

Are each of the following examples acidic, basic, or neutral? tears, pH7.5

basic

When acid is added to the blood buffer system, the_________, in the blood reacts with the______ from the acid to neutralize it.

bicarbonate, HCO3− H3O+

When base is added to the blood buffer system, the__________ in the blood reacts with the_____ from the base to neutralize it.

carbonic acid, H2CO3, OH-

Name each of the following acids or bases: HCl

hydrogen Chloride

HBrO(aq)+H2O(l)⇌H3O+(aq)+BrO−(aq) adding some HBrO(aq)

in the direction of the products

HBrO(aq)+H2O(l)⇌H3O+(aq)+BrO−(aq) removing some H3O+(aq)

in the direction of the products

HBrO(aq)+H2O(l)⇌H3O+(aq)+BrO−(aq) adding some BrO−(aq)

in the direction of the reactants

HBrO(aq)+H2O(l)⇌H3O+(aq)+BrO−(aq) removing some HBrO(aq)

in the direction of the reactants

Consider the buffer system of nitrous acid, HNO2, and its salt, NaNO2. HNO2(aq)+H2O(l)⇌H3O++NO2−(aq) The purpose of this buffer system is to:

maintain pH

The function of a buffer is to ________.

maintain the pH of a solution

Consider the buffer system of nitrous acid, HNO2, and its salt, NaNO2. HNO2(aq)+H2O(l)⇌H3O++NO2−(aq) The weak acid is needed to:

neutralize added OH−

Consider the buffer system of nitrous acid, HNO2, and its salt, NaNO2. HNO2(aq)+H2O(l)⇌H3O++NO2−(aq) When OH− is added, the equilibrium shifts in the direction of the:

products

Consider the buffer system of nitrous acid, HNO2, and its salt, NaNO2. HNO2(aq)+H2O(l)⇌H3O++NO2−(aq) If H3O+ is added, it is neutralized by:

the salt