17 Use the following information to answer the next 2 questions. Consider the following equilibrium.

Q.17

Use the following information to answer the next 2 questions.

Consider the following equilibrium.

H2SeO3(aq)+HPO2−4(aq)⇋HSeO−3(aq)+H2PO−4(aq)

H2SeO3(aq)

 yes

no

HPO2−4(aq)

 yes

no

HSeO−3(aq)

 yes

no

H2PO−4(aq)

 yes

no

Q.19

Use the following information to answer the next question.

NH3(aq)+H2S(aq)⇋HS−(aq)+NH+4(aq)

NH3(aq) and H2S(aq)

 yes

no

HS−(aq) and NH+4(aq)

 yes

no

HS−(aq) and H2S(aq)

 yes

no

NH+4(aq) and NH3(aq)

 yes

no

HS−(aq) and NH3(aq)

 yes

no

NH+4(aq) and H2S(aq)

 yes

no

Q.20

The conjugate acid of HPO42-(aq) is

3PO4(aq)

3-

Bronsted-Lowry ReactionProton donor/acceptor

HSO−3(aq)+H2O(l)⇋H2SO3(aq)+OH−(aq)

Choose...

proton donor

proton acceptor

HSO−3(aq)+NH3(aq)⇋NH+4(aq)+SO2−3(aq)

Choose...

proton donor

proton acceptor

Q.22

Use the following information to answer the next question.

Weak Acids

1. 2CO3(aq)
2. 2SO3(aq)

Q.23

Use the following information to answer the next 4 questions.

100 mL of hydrochloric acid solution is mixed with 100 mL of potassium hydrogen sulfide solution.

1. HCl(aq)
2. H3O+(aq)
3. Cl−(aq)
4. H2O(l)
5. KHS(aq)
6. K+(aq)
7. HS−(aq)
8. S2−(aq)

Identify all of the entities that would be initially present.

1.Choose...

entity present

entity NOT present

2.Choose...

entity present

entity NOT present

3.Choose...

entity present

entity NOT present

4.Choose...

entity present

entity NOT present

5.Choose...

entity present

entity NOT present

6.Choose...

entity present

entity NOT present

7.Choose...

entity present

entity NOT present

8.Choose...

entity present

entity NOT present

Q.24

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

Q.26

Select one:

equilibrium less than 50%

quantitative

equilibrium greater than 50%

Q.27

The balanced Bronsted-Lowry equation that represents the reaction of a solution of sodium hydroxide with aqueous lithium hydrogen sulfite is

Select one:

3(aq)→LiOH(aq)+NaHSO3(aq)

−(aq)+HSO−3(aq)⇋H2O(l)+SO2−3(aq)

Q.28

Predict the position of equilibrium in the above reaction.

Select one:

equilibrium less than 50%

quantitative

equilibrium greater than 50%

Q.29

Use the following information to answer the next 2 questions.

100 mL of lithium hydrogen carbonate solution is mixed with 100 mL of sodium dihydrogen phosphate solution.

The balanced Bronsted-Lowry equation that represents the reaction described above is

Select one:

H2PO−4(aq)+HCO−3(aq)⇋HPO2−4(aq)+H2CO3(aq)

H2PO−4(aq)+HCO−3(aq)→HPO2−4(aq)+H2CO3(aq)

H2PO−4(aq)+HCO−3(aq)⇋H3PO4(aq)+CO2−3(aq)

H2PO−4(aq)+HCO−3(aq)→H3PO4(aq)+CO2−3(aq)

Q.30

Predict the position of equilibrium in the above reaction.

Select one:

equilibrium greater than 50%

quantitative

equilibrium less than 50%