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Question  15

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Use the following information to answer the next 4 questions.

A technician combined 100 mL of 0.10 mol/L tellurous acid (H2TeO3(aq)) with 100 mL of 0.10 mol/L sodium hydrogen carbonate.

  1. H2TeO3(aq)   Ka=3.3×10−3
  2. H3O+(aq)
  3. HTeO−3(aq)   Ka=2.0×10−8
  4. H2O(l)
  5. NaHCO3(aq)
  6. Na+(aq)
  7. HCO−3(aq)
  8. CO2−3(aq)

Identify all of the entities that would initially be 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

Question  16

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The strongest Bronsted-Lowry acid present is  

_

Question  17

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The strongest Bronsted-Lowry base present is  

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Predict the position of equilibrium in the above reaction.

Select one:

A) quantitative

B) equilibrium greater than 50%

C) equilibrium less than 50%

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