21) Identify if HSO 3 - (aq) is acting as a proton donor or proton acceptor in the following two reactions. Bronsted-Lowry Reaction...

21) Identify if HSO3-(aq) is acting as a proton donor or proton acceptor in the following two reactions.

Bronsted-Lowry Reaction

HSO−3(aq)+H2O(l)⇋H2SO3(aq)+OH−(aq)

Proton donor/acceptor

Choose...

proton donor

proton acceptor

HSO−3(aq)+NH3(aq)⇋NH+4(aq)+SO2−3(aq)

Proton donor/acceptor

Choose...

proton donor

proton acceptor

22) Use the following information to answer the next question.

Weak Acids

1. HCN(aq)
2. H2CO3(aq)
3. HNO2(aq)
4. H2SO3(aq)

When the weak acids numbered above are ordered from the acid with the weakest conjugate base to the one with the strongest conjugate base, the order is 1234,1234,1234,1234,

23)Use the following information to answer the next 4 question.

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

24)

25)

26)Predict the position of equilibrium in the above reaction.

Select one:

equilibrium less than 50%

equilibrium greater than 50%

quantitative

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

Select one:

NaOH(aq)+LiHSO3(aq)→LiOH(aq)+NaHSO3(aq)

OH−(aq)+HSO−3(aq)→H2O(l)+SO2−3(aq)

OH−(aq)+HSO−3(aq)⇋H2O(l)+SO2−3(aq)

NaOH(aq)+LiHSO3(aq)⇋LiOH(aq)+NaHSO3(aq)

28) Predict the position of equilibrium in the above reaction.

Select one:

quantitative

equilibrium greater than 50%

equilibrium less than 50%

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)

30) Predict the position of equilibrium in the above reaction.

Select one:

equilibrium less than 50%

quantitative

equilibrium greater than 50%